1. 抱怨地说，咕哝地抱怨，发牢骚
2. 低声嘀咕， 低声含糊地说，轻声低语，喃喃而语
3. 咕哝， 含糊地说，嘀咕，嘟囔
4. 窃窃私语
5. 自言自语地说
6. 作低沉声
7. 发出低沉的轰鸣

1. 抱怨，怨言，小声抱怨，牢骚
2. 咕哝，嘟哝，嘀咕，嘟囔
3. 小声低语，低语（声），轻声低语，喃喃低语

1. vt. & vi. 轻声低语; 咕哝地抱怨 say (sth), in a low voice not meant to be heard; grumble in an indistinct voice

1. [S]轻声低语,小声抱怨 a sound of muttering

1. a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech

2. a complaint uttered in a low and indistinct tone

1. talk indistinctly; usually in a low voice

2. make complaining remarks or noises under one's breath;

   "she grumbles when she feels overworked"
   

1.轻声说话;小声抱怨
If youmutter, you speak very quietly so that you cannot easily be heard, often because you are complaining about something.

mutter

e.g. 'God knows what's happening in that madman's mind,' she muttered...
她咕哝着：“天知道那个疯子在想什么。”
e.g. She can hear the old woman muttering about consideration...
她能听到那个老妇人小声咕哝说考虑考虑。

1. 嘀嘀咕咕,含糊的低语声：Shriek:尖叫声 |mutter:嘀嘀咕咕,含糊的低语声 | Murmur:喃喃说话声,隔壁的人语声

2. 你喃喃自語：moan 你轻声的呻吟着. |mutter 你喃喃自语. | nod 你点点头.

3.

3. 螺母：Senkungen锪孔,沉孔 |mutter螺母 | Scheibe档圈