/mɑ:sk; US mæsk ||; mæsk/noun [C] something that you wear that covers your face or part of your face. People wear masks in order to hide or protect their faces or to make themselves look different 面具；面罩；口罩 ☞ Look at gas mask and goggles. 参看gas mask及goggles。
mask²
/mɑ:sk ||; mæsk/verb[T]
1 to cover or hide your face with a mask 戴面罩、面具或口罩: a masked gunman蒙面枪手
2 to hide a feeling, smell, fact, etc 掩饰（感受、气味、事实等）: He masked his anger with a smile.他以微笑掩饰愤怒。