guard against illness是什么意思 guard against illness怎么读
guard against illness的英文翻译是什么意思，词典释义与在线翻译
guard against illness的相关资料
guard against illness的用法和样例
- Vaccinations insure one against diseases.
接种疫苗可以预防疾病。 - Probiotics are also under intense scientific scrutiny to assess their utility in treating and preventing illness.
益生菌也在进行严格的科学审查以评价它们在治疗和预防疾病上的用途。
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