grumble

抱怨、發牢騷、嘀咕

He grumbled about the long hours and the low pay.

他抱怨工時太長、薪水太低。

發出低沉聲響、隆隆作響

Thunder grumbled in the distance all afternoon.

整個下午遠方的雷聲隆隆作響。

咕嚕叫指肚子

My stomach started grumbling halfway through the meeting.

會議開到一半，我的肚子就咕嚕叫了起來。

怨言、牢騷

There were a few grumbles about the new parking rules.

對於新的停車規定，出現了一些怨言。

低沉聲響、隆隆聲

We heard a low grumble of thunder before the rain came.

下雨前我們聽到一陣低沉的雷聲。