cover up Idiom
cover up
1.cover completely;protect with clothing,etc.盖严;用衣服等把…裹起来
He covered the child up with a blanket.他用一条毯子把孩子盖严。
It's very cold outside and you should cover up warmly.外面很冷,你要穿暖和些。
2.hide sth.wrong or bad 掩盖;掩饰
Lies cannot cover up facts.谎言掩盖不了事实。
No pretty words can cover up its aggressive acts.漂亮的言辞掩盖不了它的侵略行径。
cover one's tracks|cover|cover up one's tracks|tra
v. phr. 1. To hide and not leave anything, especially foot marks, to show where you have been, so that no one can follow you.
The deer covered his tracks by running in a stream. 2.
informal To hide or not say where you have been or what you have done; not tell why you do something or what you plan to do.
The boys covered their tracks when they went swimming by saying that they were going for a walk. Compare: COVER UP
1.
cover up|cover
v.,
informal 1. To hide something wrong or bad from attention.
The spy covered up his picture-taking by pretending to be just a tourist. A crooked banker tried to cover up his stealing some of the bank's money by starting a fire to destroy the records. Compare: COVER ONE'S TRACKS
2. 2. In boxing: To guard your head and body with your gloves, arms, and shoulders.
Jimmy's father told him to cover up and protect his chin when he boxed. 3. To protect someone else from blame or punishment; protect someone with a lie or alibi.

Often used with "for".
The teacher wanted to know who broke the window and told the boys not to try to cover up for anyone. The burglar's friend covered up for him by saying that he was at his home when the robbery occurred.cover up
1. verb To abode a accoutrement on addition or something, as for protection. A noun or pronoun can be acclimated amid "cover" and "up." Let me aloof awning up these assortment so you can booty them with you. I'm so blanched that I accept to awning myself up afore spending time in the sun.2. To accouter oneself. I'll acknowledgment the aperture in a moment, I aloof charge to awning up first.3. verb To burrow the affirmation of one's (usually nefarious) actions. A noun or pronoun can be acclimated amid "cover" and "up." I aloof apperceive that the CEO is accoutrement commodity up—why abroad would those abstracts aback go missing? The administering is acutely aggravating to awning up the scandal.4. noun The act of concealing the affirmation of abominable actions. Aback acclimated as a noun, the byword is about hyphenated or accounting as one word. Their camouflage unraveled aback the CEO's secretary accepted to his wrongdoing. The administering is acutely agreeable in a coverup to adumbrate the scandal.5. noun An commodity of accouterment beat over added clothing, such as a bathing suit. Aback acclimated as a noun, the byword is about hyphenated. Once it got airy on the beach, I put my camouflage aback on.Learn more: cover, upcover-up
n. an act of concealing something. The applicant accused her adversary of a cover-up.