humming

1.[i][t]哼（曲子）to sing a tune with your lips closed

2.[i]发嗡嗡声to make a low continuous sound

3.[i]活跃；繁忙to be full of activity

hum and haw

犹豫不决；支支吾吾；嗯嗯呃呃to take a long time to make a decision or before you say sth

1.[sing]~ (of sth)嗡嗡声；嘈杂声a low continuous sound

1.嗡嗡声,嗡嗡营营声;哼哼声;嘈杂声,杂音

2.〔口语〕欺骗

3.〔俚语〕恶臭

4.〔电信〕哼声,交流声

5.灰岩残丘,溶蚀残丘

6.孤峰

7.蜂音,蜂鸣

1.哼(歌曲)

2.〔口语〕欺骗

3.发出嗡嗡声或呼呼声:

4.(在嘴里)咕咕哝哝,磕磕巴巴,结结巴巴地说

5.〔口语〕(事业等)变得有生气,恢复生气;忙碌;活跃起来

6.〔俚语〕发出恶臭

7.营营的响

1.哼!〔表示轻蔑,踌躇,怀疑等〕

1.a steady droning sound

2.an unpleasant smell

3.a low continuous noise made by a machine or a lot of people talking

1.to sing with lips closed and without words, or sing something in this way

2.to make a steady prolonged droning sound

3.to be filled with a low, continuous, indistinct noise

4.to be very busy or active

5.to smell unpleasantly

6.to make musical sounds with your lips closed

7.if a place is humming, it is full of noise and activity

8.make a continuous sound;whir

1.a low sound made to express displeasure, doubt, surprise, or indecision

2.used when you are not sure what to say or when you do not approve of something