As we expected, it's less than one, and of course if we build an engine, we want it to be as high as possible, as close to one as possible.

就像预先期待的一样，效率小于一，当然如果我们建造一台热机，我们希望效率越高越好，尽可能接近一。

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so you can't build really high or the buildings will just sink into the ground.

所以你不能把楼建得很高，否则建筑物会下沉到地里。

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