I crewed for him on his yacht last summer .

去年夏天我在他的游艇上当船员。

After that , there might be the first crewed flight to mars .

之后，也许会有去往火星的第一次载人飞行。

Seen from a pirate skiff crewed by men from one of the poorest and most desperate nations in the world it must seem a rich and almost limitless hunting ground .

海盗艇上的船员都是来自世界上最贫穷最让人绝望的国家，在他们看来这片水域就是一块富饶且几乎没有限制的狩猎场。

Normally the boat is crewed by five people .

通常这条船配有五名船员。

Rafts are crewed by ten men who use single bladed paddles .

救生艇上有十名船员，全都使用单叶桨。