单词：animal virus
animal virus的用法和样例：
例句
- Spontaneous and induced mutation occur with animals viruses.动物病毒的突变有自发突变和诱发突变。
- Scientists say H.I.V., human immunodeficiency virus, is related most closely to an animal virus.科学家们表示，人类免疫缺损病毒与一种动物病毒关系非常密切。
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