六级So Boser has to vaccinate her foxes against various diseases.
因此,博瑟必须给她的狐狸接种各种疾病的疫苗。
2018年12月六级真题(第三套)阅读 Section A
高考This is called "herd immunity", which protects the people who get hurt easily, including those who can't be vaccinated for medical reasons, babies too young to get vaccinated and people on whom the vaccine doesn't work.
这就是所谓的“群体免疫”,它保护那些容易受伤的人,包括那些因为医疗原因不能接种疫苗的人,那些太小而不能接种疫苗的婴儿,以及那些疫苗不起作用的人。
2017年高考英语北京卷 阅读理解 阅读C 原文
考研But it was still possible to vaccinate people in other high-risk groups: health care workers, people caring for infants and healthy young people.
但仍然有可能为其他高危人群接种疫苗:卫生保健工作者、照顾婴儿的人和健康的年轻人。
2010年考研真题(英语二)完形填空 Section Ⅰ
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