Vaccination immunizes people against smallpox.
种牛痘可以免患天花.
《现代英汉综合大词典》
Vaccination immunizes one against smallpox.
接种牛痘能使人免患天花.
辞典例句
A health worker immunizes an infant in Nepal.
医疗工作者在尼泊尔为婴儿注射预防针.
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