1 [C] a journey by air 空中旅行: to book a flight 预订机票a direct/scheduled/charter flight 直航；班机；包机They met on a flight to Australia. 他们在飞往澳大利亚的飞机上相遇。 a manned space flight to Mars 到火星去的载人飞行

2 [C] an aircraft that takes you on a particular journey 航班；班机: Flight number 340 from London to New York is boarding now (= is ready for passengers to get on it). 由伦敦飞往纽约的340航班现在请旅客登机。

3 [U] the action of flying 飞行: It's unusual to see swans in flight (= when they are flying). 飞翔中的天鹅难得一见。

4 [C] a number of stairs or steps going up or down 一段楼梯；一段台阶: a flight of stairs 一段楼梯

5 [C,U] the action of running away or escaping from a dangerous or difficult situation 逃跑: the refugees' flight from the war zone 难民逃出战区