Operation Noun Countable Body Part Remove Work Business
The word "operation" can refer to a highly organized activity, a business or company, a surgical procedure, or the state of being used or working. It can also describe the functioning of machinery or systems, or a military action.
The word "operation" can refer to a highly organized activity, a business or company, a surgical procedure, or the state of being used or working. It can also describe the functioning of machinery or systems, or a military action.
[N-COUNT 可数名词]（由大量人员参与、具有高度组织性的）活动，行动，工作 An operation is a highly organized activity that involves many people doing different things.
[usu supp N]
The rescue operation began on Friday afternoon...
救援行动于星期五下午开始。
The soldiers were engaged in a military operation close to the Ugandan border.
这些士兵参加了乌干达边境附近的一次军事行动。
...a big operation against the drugs trade.
打击毒品交易的大规模行动
2
[N-COUNT 可数名词]企业；公司 A business or company can be referred to as an operation .
[BUSINESS 商]
Thorn's electronics operation employs around 5,000 people...
索恩的电子公司雇用了约5,000名员工。
The two parent groups now run their business as a single combined operation.
这两个母公司现在合并为一家企业经营业务。
3
[N-COUNT 可数名词]手术 When a patient has an operation, a surgeon cuts open their body in order to remove, replace, or repair a diseased or damaged part.
Charles was at the clinic recovering from an operation on his arm.
查尔斯的胳膊动了手术，正在这家诊所进行康复治疗。
4
[N-UNCOUNT 不可数名词]使用；运作 If a system is in operation, it is being used.
[in/out of N]
Until the rail links are in operation, passengers can only travel through the tunnel by coach.
在铁路连线开通之前，乘客只能乘坐长途客车穿越隧道。
...the free banking system that has been in operation since the early eighties.
从80年代初就开始实行的自由银行制度
5
[N-UNCOUNT 不可数名词]（机器、设备等的）运转，运行 If a machine or device is in operation, it is working.
[in/out of N]
There are three ski lifts in operation.
有3台滑雪缆车在运行。
6
[PHRASE 短语]（使）施行；（使）实行；（使）生效 When a rule, system, or plan comes into operation or you put it into operation, you begin to use it.
[V inflects]
The Financial Services Act came into operation four years ago...
《金融服务法》于4年前开始实施。
Cheaper energy conservation techniques have been put into operation in the developed world.
更经济的节能技术在发达国家已经投入使用。
Oxford
op·er·ation★/ˌɒpəˈreɪʃn; NAmEˌɑːpəˈreɪʃn/nounmedical 医疗1★(also BrE,informalop)[countable ]the process of cutting open a part of a person's body in order to remove or repair a damaged part 手术◆Will I need to have an operation?我需要动手术吗？◆He underwent a three-hour heart operation.他接受了三个小时的心脏手术。operation(on sb/sth) (to do sth) ◆an operation on her lung to remove a tumour为她做肺部肿瘤切除手术operation(on sb/sth) (for sth) ◆Doctors performed anemergency operationfor appendicitis last night. 医生昨天夜里做了紧急阑尾炎手术。☞collocationsat
ill
organized activity 有组织的活动2★[countable ]an organized activity that involves several people doing different things （有组织的）活动，行动◆a security operation安全行动◆The police have launched a major operation against drug suppliers.警方展开了一次打击毒贩的大规模行动。◆the UN peacekeeping operations联合国维持和平行动business 商务3★[countable , usually plural ]a business or company involving many parts （包括许多部份的）企业，公司◆a huge multinational operation庞大的跨国公司4★[countable ]the activity or work done in an area of business or industry （工商业）活动，业务◆the firm's banking operations overseas这家公司的国外银行业务computer 计算机5★[countable , uncountable ]an act performed by a machine, especially a computer 运算；运作◆The whole operation is performed in less than three seconds.全部运算在三秒内完成。machine/system 机器；系统6★[uncountable ]the way that parts of a machine or a system work; the process of making sth work 运转；运行；操作◆Regular servicing guarantees the smooth operation of the engine.定期维修可保持发动机的顺畅运转。◆Operation of the device is extremely simple.这个装置的操作非常简单。military activity 军事行动7[countable , usually plural ]military activity 军事行动◆He was the officer in charge of operations.他是负责指挥作战行动的军官。mathematics 数学8[countable ]a process in which a number or quantity is changed by adding, multiplying, etc. 运算IDIOMSin opeˈrationworking, being used or having an effect 工作中；使用中；有效◆The system has been in operation for six months.这个系统已经运行六个月了。◆Temporary traffic controls are in operation on New Road.新路正在实施临时交通管制。come into opeˈrationto start working; to start having an effect 开始工作；开始生效SYN
come into force
◆The new rules come into operation from next week.新规定从下周起实施。put sth into opeˈrationto make sth start working; to start using sth 实施；使…运转；启用◆It's time to put our plan into operation.现在应该执行我们的计划了。operationoperationsop·er·ation/ˌɒpəˈreɪʃn; NAmEˌɑːpəˈreɪʃn/
1medical [countable] the process of cutting into someone’s body to repair or remove a part that is damagedoperation on She’s going to need an operation on her ankle.operation for an operation for canceroperation to do something He had an operation to reduce the swelling in his brain.2business/organization [countable] a business, company, or organization: The firm set up its own property development operation. a microchip manufacturing operation Nolan and Barnes were both involved in the operation.3work/activities [countable, uncountable] the work or activities done by a business or organization, or the process of doing this work: Many small businesses fail in the first year of operation. The Education Business Partnership has been in operation since 1989.4actions [countable] a set of planned actions or activities for a particular purpose: The UN rescue operation started shortly after dawn.5machine/system [uncountable] the way the parts of a machine or system work together, or the process of making a machine or system work: The aircraft’s engine operation was normal.in operation Protective clothing must be worn when the machine is in operation. The device has a single button, allowing for easy operation. Careful checks must be made before the factory commences operation. The new investment system came into operation in 1999.6principle/law/plan etc [uncountable] the way something such as a principle or law works or has an effectin operation a clear example of the law of gravity in operationcome/go into operation (=begin to have an effect) The new rule comes into operation on February 1.put/bring something into operation (=make something start to work) A scheme is being brought into operation to see how these changes would work.7military/police action [countable] a planned military or police action, especially one that involves a lot of people: Britain will carry out a joint military operation with the US.8computers [countable] an action done by a computerCOLLOCATIONSverbshave an operation (also undergo an operation formal)· Harris had a hip operation in October.· She has undergone 50 operations since birth.do/carry out an operation (also perform an operation formal)· The operation was carried out by a team of surgeons at Papworth Hospital.· I’ve done this operation hundreds of times.recover from an operation· A man is recovering from an emergency operation after his pet dog attacked him.survive an operation· Only one person has survived an operation to implant an artificial heart.ADJECTIVES/NOUN + operationa knee/heart/stomach etc operation· He is almost back to full fitness after a knee operation.a major/minor operation· The unit cares for patients recovering from major operations.an emergency operation· He had to have his spleen removed in an emergency operation.a routine operation (=an operation that is often performed)· a routine operation to remove an appendixa life-saving operation· The child underwent a life-saving operation to remove a blockage in her stomach.a transplant operation· He is too weak to undergo a transplant operation.COMMON ERRORS ► Don’t say ‘take an operation’. Say have an operation. Don’t say ‘make an operation’. Say do an operation or perform an operation.THESAURUSoperation noun [countable] the process of cutting into someone’s body to repair or remove a part that is damaged: · He had an operation to remove a blood clot from his brain.procedure noun [countable] an operation performed in a particular way on a particular part of the body. Procedure is used especially in medical English, for example by doctors and people who work in hospitals. In everyday English people usually say operation: · a common surgical procedure· The procedure normally only takes a few minutes.transplant noun [countable] an operation to remove an organ from one person’s body and put it into another person’s body: · There is a shortage of donors for heart transplants.· She had to have a kidney transplant.surgery noun [uncountable] medical treatment involving an operation: · She required surgery on her right knee.· He was taken in for surgery.plastic surgery noun [uncountable] surgery to improve someone’s appearance: · The singer has just had plastic surgery on her nose.bypass noun [countable] an operation to make someone’s blood flow past a part of their heart that is blocked or damaged, often using a vein that has been removed from another part of their body: · He went into hospital for a triple heart bypass.skin graft an operation to repair an area of skin that has been badly damaged, especially using skin from another part of someone’s body: · Her leg was severely burned and may require a skin graft.