the way of writing the sound that people make to show that they are listening to somebody or that they agree, they are thinking, they like something, they are not sure, etc.唔,嗯(书写中表示同意、思考中、喜欢、犹豫等发出的声音)
Mm, I know what you mean.唔,我知道你的意思。
Mm, what lovely cake!哇,好棒的蛋糕啊!
Mmm, I'm not so sure that's a good idea.嗯,我不知道这想法行不行。