逐词背单词_轻松背单词

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逐词背单词第7级

学习进度：1/1000

bacterium [bæk'tɪərɪəm]

基本释义：n.(pl.bacteria )细菌
英英释义：a type of very small organism that lives in air , earth , water , plants and animals , often one which causes a disease

参考例句：

1. The bacterium possibly goes in the human body by the mouth. 细菌可能通过口进入人体。
2. A bacterium is identified as the cause for his duodenal ulcer. 一种细菌被断定为造成他十二指肠溃疡的根源。

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