He’s too chicken-hearted to defend his beliefs in public.
他胆子太小,不敢在公众面前为自己的信仰辩护。
Cheat on somebody:
给某人戴绿帽
例句:
She cheats on her husband.
她给她老公戴绿帽。
Have an affair with somebody:
跟某人有暧昧关系
例句:
You have an affair with him.
你和他有暧昧关系。
Two-time:
对(情人或者配偶)不忠
例句:
Are you sure he’s not two-timing you?
你肯定他没有背着你另有所爱?