People use their mouths for many things. They eat, talk, shout and sing. They smile and they kiss.
译

In the English language, there are many expressions using the word mouth. But some of them are not so nice.
译
For example, if you say bad things about a person, the person might protest and say "Do not bad mouth me."
译
Sometimes, people say something to a friend or family member that they later regret because it hurts that person's feelings. Or they tell the person something they were not supposed to tell.
译
The speaker might say: "I really put my foot in my mouth this time."
译
If this should happen, the speaker might feel down in the mouth. In other words, he might feel sad for saying the wrong thing.
译
Another situation is when someone falsely claims another person said something. The other person might protest: "I did not say that. Do not put words in my mouth."
译
Information is often spread through word of mouth.
译