cover-up

n.

掩饰；隐蔽；掩盖手段[手法]；

复数：cover-ups

1. She laughed to cover her anxiety.
   她试图以笑来掩饰她的焦虑。
2. They won't be able to hush up their crime any more.
   他们再也不能掩饰他们的罪行了。
3. This business is a cover for unlawful activity.
   这家商行是搞非法活动的隐蔽处。
4. Machine guns opened up from a concealed position.
   机关枪从隐蔽的阵地开始射击。

Cover-Up
Cover-Up
Notorious Events. (Book Reviews: Factories of Death. Japanese Biological Warfare 1932-45 and the American Cover-Up)
Factories of Death: Japanese Biological Warfare 1932-45 and the American Cover-Up by Sheldon H. Harris
Climate cover-up : the crusade to deny global warming
Combination beach towel/ changing cover-up
The American Cover-up of Japanese Human Biological Warfare Experiments, 1945-1948
Nursing cover-up
The Heat is On: The Climate Crisis, The Cover-Up, The Prescription by Ross Gebspan
Smokescreen: The Truth Behind the Tobacco Industry Cover-up