verb · to sing or croon a melody softly with closed lips or without words

她心情很好，嘴里哼着轻快的调子。

verb · to utter a low sound expressive of physical pain or mental distress

他受了伤，疼得在床上直哼。

interjection · to express contempt, skepticism, or displeasure through a nasal sound or interjection

哼，这种小事我才不在乎！

interjection · interjection expressing dissatisfaction or suspicion

哼，你以为我真的会上当吗？