(1) 1) 飞翔(行) (act，manner or process of flying) [U]：in～飞行(翔)中;a bird's～鸟在飞翔;Some birds are incapable of～. 有些鸟不会飞。supersonic～超音速飞行;～lieutenant/sergeant/simulator/path 空军上尉/空军上士/模拟飞行器/航向(线); 2) 飞行距离(路线) (distance covered or the course taken by a flying object) [U]：a 500-mile～ 500英里的飞行;the～of a missile/an arrow 导弹/箭的射程;〖同〗flying;

(2) 1) 航班(行) (journey in a plane) [C]：a～crew 机组;～training 航行训练;make a successful/comfortable/bumpy～across the ocean 进行一次成功/舒适/颠簸的跨洋飞行;cancel all regular～s 取消所有定期航班;〖同〗flying; 2) 班机 (aeroplane that takes you on a particular journey) [C]：be on the same～to New York 乘同一班机去纽约;F～Number 172 arrives. 172班机到港。

(3) 飞行的鸟(昆虫等)群(number of birds，insects，etc flying or moving through the air) [C] [N(of)]：a～of wild geese/pigeons/swallows 飞行的一群大雁/鸽子/燕子;a～of arrows/rockets 齐发的箭/火箭;〖同〗flock，wing;

(4) (时光等的)飞逝(any swift passage or movement，esp of time) [U]：There's no way to stop the～of time. 没有办法能阻挡时间的飞逝。〖同〗rush;

(5) 奔放(effort that surpasses the usual bounds) [C][N(of)]：a～of imagination/fancy 奔放的想像/幻想;wild～s of imagination 浮想联翩;

(6) 一段楼梯(series of steps，and sometimes of landings，between any floor and the next) [C]：a～of stairs/steps 一段楼梯/阶梯;climb five～s of stairs 爬五段楼梯;

(7) 宇宙航行(journey into or through outer space) [C]：a rocket～火箭的宇宙航行;the history of manned space～载人宇宙飞行的历史;

(8) 空军小队，飞行编队(unit of military air forces，consisting of two or more aircraft) [C]：an aircraft of the Queen's～“王后”号飞行编队中的一架飞机;

→′flight-deck n 飞机起降用的甲板;驾驶舱;′flight-recorder n 飞行记录器(黑匣子);′flightless adj 不会飞的;′flighty adj 轻浮的;善变的