戴口罩的英文是wear a mask。
例句：
1、Another way, recommended by the Japanese, is to make everyone wear a mask.
另一种方法，是日本人推荐的，就是让所有人都戴上口罩。
2、Wear a mask that is rated N90 or above.
戴上N90或标准更高的口罩。
3、You must wear a mask when you go out.
你出门一定要戴口罩。
4、For instance, do you wear a mask or use an air purifier?
例如，你是否戴口罩或使用空气净化器？
5、Hmm, another obvious one: wear a mask when you're on the subway.
京晶：嗯，说一个很明显的吧，当你坐地铁的时候带个口罩。
a宝贝洁洁
