a flight of的用法和樣例：
例句
- A flight of steps led up to the house.
一段臺階向上通到了屋前。 - The old woman fell down a flight of stairs.
那位老太太從一段樓梯上摔了下來(lái)。 - She died when she was ninety, not of old age, but from head injury when she fell down a flight of stairs.
她90歲時(shí)去逝，并不是老死，而是從樓梯上摔下來(lái)頭部受傷而死。 - I see a flight of geese head south for the winter.
我看到一群大雁南飛過(guò)冬去了。
