vaccine [ˈvæksi:n]

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单词级别

第8级

基本释义

n.牛痘苗，疫苗；adj.牛痘的，疫苗的

英英释义

a substance which contains a form that is not harmful of a virus or bacterium (= extremely small organism ) and which is given to a person or animal to prevent them from getting the disease which the virus or bacterium causes

参考例句

The polio vaccine has saved millions of lives. 脊髓灰质炎疫苗挽救了数以百万计的生命。
She takes a vaccine against influenza every fall. 她每年秋季接种流感疫苗。

vaccine [ˈvæksi:n]

单词级别

基本释义

英英释义

参考例句

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