Question

helicopter n.直升飞机vt.用直升飞机载送vi.乘直升机 (1) 罪犯乘直升机逃走了。(2) 遭遇海难的水手已经被直升机救起。(3) 我们来来回回地用直升机把旅客运送到市中心。(4) 官员们被用直升机送到船上。 Like airplanes, helicopters travel through the air — but unlike airplanes, they don't have wings. Most helicopters have a large rotor blade on top that creates lift by spinning rapidly. Smaller rotors help the helicopter move and steer. Hospitals use helicopters for transporting patients in crisis, for whom an ambulance might not move fast enough. The word comes from Greek roots, helix, "spiral," and pteron, "wing."

Accepted Answer

英 ['helɪkɒptə(r)] 美 ['helɪkɑːptər] (1) The criminal escaped by a helicopter.(2) The shipwrecked sailors were rescued by helicopter.(3) We shuttled the passengers to the city center by helicopter.(4) The officials were helicoptered aboard the ship. A helicopter is a flying vehicle with a system of rotors that lift and propel it. In some cities, police officers patrol in helicopters. In some suburbs, wealthy people even commute by helicopter. 1[N-COUNT 可数名词]直升机 A helicopter is an aircraft with long blades on top that go round very fast. It is able to stay still in the air and to move straight upwards or downwards.

英语单词	helicopter
英美音标	英 ['helɪkɒptə(r)] 美 ['helɪkɑːptər]
中文释义	n.直升飞机 vt.用直升飞机载送 vi.乘直升机
英语例句	(1) The criminal escaped by a helicopter. (2) The shipwrecked sailors were rescued by helicopter. (3) We shuttled the passengers to the city center by helicopter. (4) The officials were helicoptered aboard the ship.
中文例句	(1) 罪犯乘直升机逃走了。 (2) 遭遇海难的水手已经被直升机救起。 (3) 我们来来回回地用直升机把旅客运送到市中心。 (4) 官员们被用直升机送到船上。
vocabulary简明	A helicopter is a flying vehicle with a system of rotors that lift and propel it. In some cities, police officers patrol in helicopters. In some suburbs, wealthy people even commute by helicopter.
vocabulary扩展	Like airplanes, helicopters travel through the air — but unlike airplanes, they don't have wings. Most helicopters have a large rotor blade on top that creates lift by spinning rapidly. Smaller rotors help the helicopter move and steer. Hospitals use helicopters for transporting patients in crisis, for whom an ambulance might not move fast enough. The word comes from Greek roots, helix, "spiral," and pteron, "wing."
柯林斯解释	1 [N-COUNT 可数名词]直升机 A helicopter is an aircraft with long blades on top that go round very fast. It is able to stay still in the air and to move straight upwards or downwards.

Helicopter Move Rotors Lift Airplanes Air Top 英