英语词汇“variation in quantity”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	variation in quantity
释义	variation in quantity 基本例句数量变化 There were many ups and downs in the earth's numbers.世界人口数量变化起伏不定。 The total number of vessels engaged in the trade fluctuated.贸易中使用的船舶总数量变化很大。
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