A more energy-efficient approach would be to head straight into the current as long as possible and then turn, much as a sailboat tacks in the wind.

一个更节约能源的方法是：尽可能的沿着水流的方向前进，然后再转向，就像帆船在风中行驶那样。

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At least no one followed directions to turn in the path of anoncoming train, driveinto a lake, or wind up strandedin snowdrifts.

还好没有人真正的根据指示转入火车迎面驶来的轨道、开进湖里、搁浅到雪堆里。

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In theory, that increase in wind and current strength would make for more mixing within the lake and, in turn, a boost in the growth of organisms that make up the earliest links in the food chain.

理论上，风和气流的增强会在湖中制作更多的混合物，这使得湖中有机物快速增长，形成较短的食物链。

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