蒋健棠英语实用句子(47):He is immune to chickenpox

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He is immune to chickenpox, he had it as a child.

他对水痘免疫，他小时候就得过了。

immune表示免疫的，immune system就是指身体的免疫系统;而对...有免疫力就用be immune to...这个词组。