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1·Sally always bad-mouth her classmates.

萨利老是说她同学不好。

2·Candice: Hey Brian. Don't bad-mouth me!

坎迪斯：嗨，布莱恩，不要说我坏话！

3·I don't like you to bad-mouth other people behind their back.

我不喜欢你在背后说别人的坏话。

4·You always bad-mouth me in front of our manager. What do you want?

你总是在经理面前说我坏话。你想干吗？

5·I really get tired of hearing Sally bad-mouth her mother and father.

我真是听得烦死了。她从来也没有说过他们什么好话。

6·To bad-mouth (someone) means to say bad things about another person.

“诽谤(某人)”意味着对说另一个人不好的事情。

7·One of the guys, Brian, starts to grumble about work and to bad-mouth the boss.

其中一个家伙，布瑞恩，开始抱怨工作并说了老板的坏话。

8·We belittle them for their success, we criticize unfairly, we bad-mouth people, we become obstacles to their further progress.

我们因为别人的成功去贬损他们，对他们进行不公正的评价，说他们的坏话，阻碍他们的进步。

9·It's never a good idea to bad-mouth someone, because that other person may hear you, or people that you are talking to might tell that person - especially if that person is your boss!

说对某人不好的话从来都不是个好主意，因为其他人可能会听到你说的话，或你的倾诉者可能会告诉那个人-——特别是当你所说的那个人是你的老板时！

10·It is bad manners to talk with your mouth full.

嘴里塞满了东西跟人说话是不礼貌的。《牛津词典》