grumbling 是 grumble 的現在分詞grumbleKK [ˋgrʌmbəl] /ˈɡɹʌmbəl/發音動詞1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。2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。3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。名詞1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。2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。