英语词汇keep something down怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	keep something down
释义	keep something down 1 cause something to remain at a low level 把…控制在较低水平上： the population of aphids is normally kept down by other animals. 蚜虫的数量通常被其他动物控制在较低水平上。 2 retain food or drink in one's stomach without vomiting 不呕吐出。 See main entry:keep
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