swine fluˈswine flu noun [uncountable] 
a type of influenza which is caused by a virus that originally infected pigs
a type of influenza which is caused by a virus that originally infected pigs
| 单词 | swine flu |
| 释义 | swine fluˈswine flu noun [uncountable] a type of influenza which is caused by a virus that originally infected pigs |
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