WORD BY WORD

grumble

英/ɡɹˈʌmbəl/
美/ˈɡɹəmbəɫ/
01n.

怨言, 满腹牢骚

a complaint uttered in a low and indistinct tone

02v.

抱怨, 发牢骚, 发隆隆声

to utter or emit low dull rumbling sounds

03v.

抱怨

to utter or emit low dull rumbling sounds