lost face

• v. 丢脸(失面子；失去自尊心)

lost face的用法和样例：

例句

1. He tried to conceal his mistake so as not to lose face.
   他知道他错了，但怕丢面子而不敢承认。
2. If a teacher can't answer this simple question, he'll lose face with his class.
   如果老师连如此简单的问题都不能回答，他会在学生面前丢脸的。