柯林斯詞典face mask (face masks) 1. N-COUNT A face mask is a device that you wear over your face, for example, to prevent yourself from breathing bad air or from spreading germs, or to protect your face when you are in a dangerous situation. 口罩; 面罩2. N-COUNT A face mask is a thick substance which you spread on your face, allow to dry for a short time, and then remove, in order to clean your skin thoroughly. 面膜[美國(guó)英語(yǔ)] 返回 face mask