So, in a sense, it says, you know, if you wanted to build a boat that took energy out of the warmth of the air to sail around the world, you can do that.
因此,某种意义上说,它宣称如果你想要造一艘船,通过从空气中获取热量,这是可以做到的。
He'd learned to sail when he was young, but on the river.
他年轻时就学会了航海,但是在河上
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