英语词汇牛痘病是什么意思，牛痘病的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	牛痘病
释义	DEFINITIVE EXAMPLES 权威例句The cowpox virus was used in the past to vaccinate humans against smallpox.牛痘病毒过去被用来为人类接种以预防天花。剑桥国际
随便看	keep a careful watch on keep a careful watch on keep a check on keep a check on keep a civil tongue keep a civil tongue keep a civil tongue keep a civil tongue in one's head keep a clear berth of sb keep a close eye on keep a close eye on keep a close watch on keep a close watch on keep a close watch over keep a contract keep a cool head keep a cool head keep a cool head keep a diary keep a diary keep a dog and bark oneself keep a fast keep a firm grasp on keep a firm hand keep a firm hand

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