Variation in Quantity是什么意思 Variation in Quantity怎么读
Variation in Quantity的相关资料
Variation in Quantity的用法和样例
- 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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