n.[C]

1. 假面具；伪装；遮蔽物
   All guests wore masks to the ball.

   所有客人都戴假面具参加舞会。

2. 防护面具；口罩
   The nurse wore a gauge mask.

   护士戴着薄纱口罩。

3. （用石膏等从人的面部取下的）面部模型
4. 掩饰，口实
   He did it under the mask of charity.

   他借慈善之名做此事。

5. 化装舞会；假面具
6. 戴假面具的人
   A mask, in the character of an old woman, joined them.

   一个戴着假面具扮演老妇的人加入了他们的行列。

7. 【建】怪状人面（或人头）装饰
8. 面膜

vt.

1. 在（脸上）戴面具
   All the robbers were masked.

   所有的强盗都戴着面具。

2. 掩饰；伪装，遮蔽
   He tried to mask his disappointment with a smile.

   他试图以微笑来掩饰他的失望。

3. 使模糊，使不被察觉

vi.

1. 戴面具，化装
2. 掩饰，伪装起来

n.

1. a covering for all or part of the face, worn as a disguise, for protection or hygiene, or for theatrical effect.
   ▸a respirator used to filter inhaled air or to supply gas for inhalation.
   ▸a face pack.
2. a likeness of a person's face moulded or sculpted in clay or wax.
   ▸the face or head of an animal, especially of a fox, as a hunting trophy.
3. a disguise or pretence:
   she let her mask of respectability slip.
4. Photography  a piece of material used to cover part of an image that is not required when exposing a print.
5. Electronics  a patterned metal film used in the manufacture of microcircuits to allow selective modification of the underlying material.

v.

1. cover with a mask.
2. conceal from view; disguise:
   brandy did not mask the bitter taste.
3. cover so as to protect during a particular process, especially painting.