英语词汇keep up something简单造句、意思、用法及例句-英语例句辞典

单词	keep up something
例句	原声例句 2012 ESLPod To " keep something up" or to " keep up something" here means to continue to do something, especially something that is difficult or challenging. “keep something up” 或“keep up something” 在这里的意思是继续做某事，尤指困难或有挑战性的事情。
随便看	existing convention existing coverage existing customer existing customers existing database existing debt existing design existing dispute existing enterprise existing equipment existing facilities existing highway existing instrument existing knowledge existing law existing legislation existing line existing loan existing machinery existing market existing mortgage existing network existing patent existing plant existing problem

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