be protected against

be protected against 基本解释

对...作好戒备, 防止...

be protected against 用法和例句

1、All these people depend almost exclusively on herd immunity to be protected against diseases.

这些人全部都几乎 只靠群体免疫来对抗疾病

2、The electric sprayer unit shall be protected against leakage earthcurrent liable to cause electrical hazard.

电喷器要装有防漏电装置如使用时有触电危险。

3、Crackers, cookies, and pretzels must be protected against moisture pickup that would soften texture.

而饼干，曲奇，椒盐卷饼则必须防止吸潮，以免质构软化。

4、Many people in the community depend almost exclusively on this herd immunity to be protected against disease.

有很多在社群里的人 几乎只靠这种群体免疫来对抗疾病

重点词汇

protected a. 受保护的

against prep. （表示态度）反对；（表示方位）紧靠着…；（表示对象）对…不利；以…兑换 conj. 在…之时；在…之前