英语词汇a clean bill of health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	a clean bill of health
释义	a clean bill of health 1. (船只经检疫后的)无疫证明书 2. 〈口〉清白证明；表现良好证明；合格证明 He was suspected in the bank robbery, but the police gave him a clean bill of health. 他有参加抢劫银行的嫌疑，可是警察当局证明他无罪。 The vaccine was given a clean bill of health. 这种疫苗被认为合格。
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