The vaccine was used to protect the whole population against infection.
这种疫苗用以为全体居民预防传染病.
| Expression | 这种疫苗用以为全体居民预防传染病. |
|---|---|
| Meaning | The vaccine was used to protect the whole population against infection. |
| Reading | zhèzhǒng yìmiáo yòng yǐwéi quántǐ jūmín yùfáng chuánrǎnbìng |
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