...有兴趣可以参考英语语法书籍），仅拿构词法来说动词后面加er就变成名词（work-worker），名词后面加y就变成形容词（wind-windy）等十多种变换还要记忆些特殊变换，复杂且繁琐，假如算上时态、句型等那就更复杂了。
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On a windy day, he measured how far he could jump with the wind at his back.
在一个刮风的日子里，他测量了自己在风吹着的情况下能跳多远。
So on a windy day, the cheapest power comes from wind turbines.
因此在多风的日子，最便宜的电力来自风力涡轮。
Wind farms have tens and sometimes hundreds of these turbines lined up together in particularly windy spots, like along a ridge.
风电场把数十个有时是数百个这样的发电机一起排列在风口上，例如沿着山脊。
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