mask /mɑ:sk/ I. n. ［c］ 面具，面罩，口罩：a flu mask 卫生口罩；put on(wear) a mask 戴上（着）面具 2.伪装，假面具：drop/throw off/put off one’s mask 摘一假面具露出真面目 ‖II. vt. 1. 遮盖，用面具遮住：mask as 扮作；slyly mask 狡猾地伪装；mask their noses and mouths with a special clean cloth 戴特别干净的口罩遮住口鼻 2.掩饰，掩盖：She masked her sufferings with a cheerful smile. 她用快乐的微笑来掩盖自己的痛苦。