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"The number of shoppers during the Christmas period plunged by up to 23% since then on."by可以省略吗? "The number of shoppers during the Christmas period plunged by up to 23 per cent since then on."中的by可以省略吗?by在这里有什么用呢?谢谢!
July 29, 2012
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请问"他们在玩具、日用品和电子产品这三方面都花费了5000元"如何翻译成英文?谢谢!
July 28, 2012
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