concealer

conceal, hide, screen

这些动词均含“隐藏，隐蔽”之意。
conceal: 正式用词，多强调有目的、有意识，巧妙地进行隐藏或隐瞒。
hide: 普通用词，既可指有意地隐藏，又可指无意或偶然地藏匿。
screen: 指把处于被发现的人或物掩盖起来，使其不被发现。

1. He couldn't conceal his envy of me/envy at my success.
   他遮掩不住对我的忌妒[对我的成就的忌妒]。
2. You should not conceal yourself from your teacher.
   你不应该躲避你的老师。
3. If words were invented to conceal thought, newspapers are a great improvement on a bad invention.
   假使语言是为了隐藏思想而被发明的，那么报纸就是对这不良发明的一大改进。
4. A woman, especially, if she have the misfortune of knowing anything, shall conceal it as well as she can.
   一个女人，尤其是如果她不幸而懂得一些事情的话，就应该尽可能把它隐藏起来。
5. He concealed himself behind the tree.
   他藏在树后。
6. It is wrong for a man to conceal things from his wife.
   一个男人对妻子隐瞒事情是不对的。