flight是可數名詞嗎

　　A short flight of steps led up to the door.

　　上幾磴臺階就到了門口。

　　Birds use warm air currents to help their flight.

　　鳥利用暖氣流助飛。

　　The gang took flight when they heard the police car.

　　這伙歹徒聽見警車聲就逃走了。

　　Our flight eventually left five hours late.

　　我們的班機最終晚了五個小時起飛。

　　They announced that the flight would be delayed.

　　廣播通知，該航班將誤點。