v. 背叛，出卖；食言，辜负；违背（信仰、原则等）；泄露（机密，信息）；流露，显露出（情感或特性）；暴露（不易发觉的东西）
1.When I tell someone I will not betray his confidence I keep my word.
当我对人说我不会辜负他的信任时，我会说到做到。
2.Only occasionally did the telltale redness around his eyes betray the fatigue he was suffering.
只有在他眼周发红的时候才偶尔显出他有多么疲劳。
3.I will try my best to finish it and won't betray your trust.
我会竭尽全力去完成，不会辜负您的信任。
4.The faces of the audience began to betray annoyance.
观众的脸上开始流露出厌烦的表情。
5.These messages are part of your survival mechanism and should not be stifled simply because emotions are unhealthy and betray your weaknesses.
这些信息是你生存机制的一部分，不应仅仅因为情绪是不良的、暴露了你的弱点而扼杀它们。
6.Sometimes a tiny behavior can betray everything.
有时一个细小的动作就够了。
7.You are getting people to do an unnatural act – to betray their country.
你在让人们做违反常理的行为—背叛他们的国家。