但是，反过来说，大多数帆船都配有马达，以便在港口内行驶，弗里德曼博士这样描述在地球轨道的情况。

But then again, most sailboats do have a motor for tooling around in the harbor, which is how Dr. Friedman describes being in Earth orbit.

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或者，他们可能是会把海洋漆成绿色的水藻。就像去年奥运会上，青岛由杂草所形成的地毯一般——那几乎使帆船比赛都无法进行。

Or they may be algae which colour the sea green, like the carpet of weed in Qingdao that nearly brought the sailing to a halt in last year's Olympic games.

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绝大多数大到足够装配一个发动机的帆船，通常都原装配有一台舷内或舷外发动机，因此你购买的时候通常不用自己选配。

The huge majority of sailboats large enough to have a motor were built for either an inboard or an outboard, so you'll usually be choosing between boats that already have one or the other installed.

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