词典释义：
a covering for all or part of the face, in particular
面具，面罩，尤指：
a covering worn as a disguise, or to amuse or terrify other people
假面具。
a covering made of fibre or gauze and fitting over the nose and mouth to protect against dust or air pollutants, or made of sterile gauze and worn to prevent infection of the wearer or (in surgery) of the patient
口罩；消毒口罩。
a protective covering fitting over the whole face, worn in fencing, ice hockey, and other sports
防护面罩。
a respirator used to filter inhaled air or to supply gas for inhalation
防毒面具；呼吸面罩。
a face pack
面膜。
【昆】 （蜻蜓幼虫）脸盖。
a likeness of a person's face in clay or wax, especially one made by taking a mould from the face
面部模型。
a person's face regarded as having set into a particular expression
表情，面容
-
his face was a mask of rage .他一脸怒容。
a hollow model of a human head worn by ancient Greek and Roman actors
（古希腊和罗马演员佩戴的）人头面具。
the face or head of an animal, especially of a fox, as a hunting trophy
（狩猎战果）兽头（尤指狐狸）。
〈古〉 戴面具的人。
〈喻〉 掩饰；伪装
-
she let her mask of moderate respectability slip .她那温和可敬的伪装露馅了。
【摄】 遮光板，遮光片。
【电 子】 （制造微电路用）模板。
cover (the face) with a mask
给…戴面具。
conceal (something) from view
遮蔽
-
the poplars masked a factory .白杨树遮蔽了工厂。
disguise or hide (a sensation or quality)
掩盖，隐藏
-
brandy did not completely mask the bitter taste .白兰地不能完全盖住苦味。
cover (an object or surface) so as to protect it from a process, especially painting
（尤指涂刷时）遮盖
-
mask off doors and cupboards with sheets of plastic .用塑料布把门和碗橱遮起来。
"mid 16th cent.： from French
