hum

持续的嗡嗡声

a continuous and unchanging humming sound

一种持续不变的嗡嗡声

稳定的嗡嗡声

a humming sound that does not fluctuate

一种没有波动的嗡嗡声

背景嗡嗡声

a low, continuous sound that is present but not the main focus of attention

一种持续存在的低沉声音，但不是注意力的主要焦点

低沉的嗡嗡声

a humming sound with a low pitch

音调较低的嗡嗡声

柔和的嗡嗡声

a low and quiet humming sound

一种低沉而安静的嗡嗡声

微弱的嗡嗡声

a very quiet and barely audible humming sound

一种非常安静、几乎听不见的嗡嗡声

轻柔的嗡嗡声

a soft and pleasant humming sound

一种柔和悦耳的嗡嗡声

a humming sound with a high pitch

…的嗡嗡声

used to indicate the source of the humming sound

用于指明嗡嗡声的来源

自顾自地哼唱

to hum quietly, usually when you are alone or not trying to be heard

安静地哼唱，通常是在独自一人或不想被听到时

轻声哼唱

to hum in a gentle and quiet manner

安静地发出低沉、连续的声音或闭着嘴唇唱歌

安静地哼唱

to hum at a low volume

低声地哼唱

to hum in accompaniment to music that is playing

开心地哼唱

to hum in a way that shows happiness

以表现出快乐的方式哼唱

大声地哼唱

to hum at a high volume

高声地哼唱

跑调地哼唱

to hum without a recognizable melody

哼唱时没有可辨认的旋律

听到嗡嗡声

to perceive a humming sound with one's ears

用耳朵感知到嗡嗡声

开始哼唱

to start humming

开始哼唱