mask

1. N-COUNT A mask is a piece of cloth or other material, which you wear over your face so that people cannot see who you are, or so that you look like someone or something else. 面具

The gunman, whose mask had slipped, fled. 面具滑落的持枪歹徒逃走了。

2. N-COUNT A mask is a piece of cloth or other material that you wear over all or part of your face to protect you from germs or harmful substances. 防护面具

You must wear goggles and a mask that will protect you against the fumes. 你必须带上护目镜和防护面具，以保护你不被烟熏。

3. N-COUNT If you describe someone's behaviour as a mask, you mean that they do not show their real feelings or character. 伪装

His mask of detachment cracked, and she saw for an instant an angry and violent man. 他冷静超然的伪装破碎了，她一瞬间看到了一个愤怒而又狂暴的男人。

4. N-COUNT A mask is a thick cream or paste made of various substances, which you spread over your face and leave for some time in order to improve your skin. 面膜

This mask leaves your complexion feeling soft and supple. 这种面膜使你的皮肤变得柔软娇嫩。

5. V-T If you mask your feelings, you deliberately do not show them in your behaviour, so that people cannot know what you really feel. 掩饰

Dina lit a cigarette, trying to mask her agitation. 黛娜点燃了一支烟，试图掩饰她的不安。

6. V-T If one thing masks another, it prevents people from noticing or recognizing the other thing. 遮掩

He was squinting through the smoke that masked the enemy. 他眯眼看着遮住敌人的那片烟雾。

7. →see also gas mask