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单词unsterile
例句 DEFINITIVE EXAMPLES 权威例句〔bloodstream〕Bacteria was introduced into his bloodstream through an unsterile needle.细菌通过未消毒的针头进入他的血流。牛津搭配
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有时写信才能表达,平时难以说出口的心声。-「紫罗兰的永恒花园」  

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