1. face mask
   面罩
   
2. mask of pregnancy
   妊娠面斑
   
3. oxygen mask
   n.[医](供人吸氧时用的)氧气面罩
   
4. death mask
   n. 死人面部模型
   
5. half mask
   半截面罩
   
6. life mask
   在活人面部套取的模型
   

1. The headgear with a glass mask worn by deep - sea divers.
   (潜水)头盔由深水潜水员戴的带有玻璃面罩的帽盔
2. He preserved his mask of solemnity even with acquaintances.
   他甚至和熟人交往也保持着一本正经的面孔。
3. The masked robber made her open the safe at gunpoint.
   那蒙面强盗用枪逼着她打开保险箱。
4. The sight of the masked gunman made my blood freeze.
   我一看见那个持枪的蒙面人就吓得浑身冰凉.
5. He went to the masked ball without masking his face.
   他去参加化装舞会而没带假面具。

　4个名词解释

　4个动词解释