cover up1.■盖住；遮住；裹住：I could not find my pencil because it was covered up by the newspapers.我找不到铅笔，原来它被报纸盖上了。2.■掩盖，掩饰；包庇(常与 for 连用)：He tried to cover up his mistakes but in vain.他试图掩饰他的错误，但办不到。He had been punished for covering up for a friend.他因包庇友人曾受到处分。