-（遮盖;掩蔽）cover;hide:
coverone'sbreastwithcoatunbuttoned;掩着怀
Shecoveredherfacein[with]herhands.她双手掩面。
-（关;合）shut;close:
withthedoorleftunlockedorunlatched;虚掩着门
closeabook掩卷
-（被卡住）getsqueezed[pinched]whileshuttingadoor,lid,etc.:
Igotmyfingerscaughtinthedoor.手被门掩了一下。
-（乘人不备进行袭击）attackbysurprise;ambushandattack:
launchasurpriseattack;掩袭
makeasurpriseattack;pounceontheenemy掩杀
