Question

latch

Accepted Answer

/ lætʃ /
◙ noun
1. a small metal bar that is used to fasten a door or a gate. You raise it to open the door, and drop it into a metal hook to fasten it.
• 门闩；插销:
»He lifted the latch and opened the door.
  他拉起门闩开了门。
2. (especially BrE) a type of lock on a door that needs a key to open it from the outside
• 碰锁；弹簧锁:
»She listened for his key in the latch.
  她留神听着他把钥匙插入门锁。

【IDIOMS】

◘ on the 'latch
(BrE)
• closed but not locked
• 关着但未锁上:
»Can you leave the door on the latch so I can get in?
  你别锁门好不好？我好进来。◙ verb [VN]
• to fasten sth with a latch
• 用插销插上；用碰锁锁上

【PHR V】

◘ ˌlatch 'on (to sth) ◘ | ˌlatch 'onto sth (informal)
• to understand an idea or what sb is saying
• 理解,懂得,领会(想法或某人的话):
»It was a difficult concept to grasp, but I soon latched on.
  那是个难以弄明白的概念,但我很快就理解了。
◘ ˌlatch 'on (to sb / sth) ◘ | ˌlatch 'onto sb / sth(informal)
1. to become attached to sb / sth
• 变得依附于:
»antibodies that latch onto germs
  依附于细菌的抗体
2. to join sb and stay in their company, especially when they would prefer you not to be with them
• 纠缠,缠住(某人)
3. to develop a strong interest in sth
• 对…产生浓厚的兴趣:
»She always latches on to the latest craze.
  她总是对最新时尚有浓厚的兴趣。

Sb Latch Fasten Door Sth Metal Open Key