1) Are you scheduled to leave on time?
飞机准时起飞吗？
2) Is the departure time on schedule?
起飞时间准时吗？
3) The plane's departure was on schedule.
飞机准时起飞。
4) The plane took off dead on time.
飞机准时起飞了。
5) The airliner took off on time.
班机准时起飞。
6) takeoff opportunity
起飞时机
补充资料：班机
有固定的航线并按排定的时间起飞的飞机。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条