名詞 humming:

1. a humming noise
   同義詞：hum
2. the act of singing with closed lips

動詞 hum:

1. sing with closed lips
   同義詞：hum
2. be noisy with activity
   同義詞：hum, buzz, seethe
3. sound with a monotonous hum
   同義詞：hum, thrum
4. make a low continuous sound
   同義詞：hum

1. The hall was humming with the sad music.
   大廳里充滿了低沉的令人傷感的樂聲。
2. She was humming to herself.
   她獨自哼著歌。
3. She is humming a popular song.
   她在哼一支流行歌曲。
4. I can't stop humming that awful jelly jingle.
   我忍不住常哼那支難聽的果凍廣告歌。