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Likewise for mass, we will take a chunk of some material and we will call it a kilogram.
质量也是这样,我们找来一大块材料,然后称它为 1 千克
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- 来自原声例句
Likewise for mass, we will take a chunk of some material and we will call it a kilogram.
质量也是这样,我们找来一大块材料,然后称它为 1 千克
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