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(单词翻译)
After getting your flu shot, did you know it takes about two weeks to develop an immunity1? It’s true. You can test your knowledge on more flu facts by taking this quiz. Here it goes.
收听单词发音
1
immunity
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| n.优惠;免除;豁免,豁免权 | |
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2
bacterial
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| a.细菌的 | |
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3
contagious
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| adj.传染性的,有感染力的 | |
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4
vaccine
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| n.牛痘苗,疫苗;adj.牛痘的,疫苗的 | |
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