manned flight的用法和樣例：
例句
- It is the first manned flight of Project Mercury.
是水星計劃第一次載人飛行的日子。 - The practical question, therefore, is whether the Americans will make themselves look silly by wasting their substance on preparations for another manned flight.
因此，實(shí)際問(wèn)題是美國人會(huì )不會(huì )因為浪費錢(qián)為另一次載人飛行作準備而使他們自己丟丑現眼。
