钟的摆动;〈喻〉摇摆不定
But if you wanted to be highly scientific about it, you could tie a short piece of string to the barometer and swing it like a pendulum, first at ground level and then on the roof of the skyscraper.
但如果你想要高度科学性的话,你可以拴一根短绳到气压计上,让它像一个钟摆一样摇摆,首先在地面摇摆,然后在摩天大楼的屋顶上摇摆。
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