Tā bùmǎn de gūnong le jǐ jù, méi rén tīng qīngchǔ.
He muttered a few words in dissatisfaction; no one could make them out.
Tips
memory
咕哝 is onomatopoeia - the sounds gū and nong evoke the low, unclear rumbling of someone muttering or grumbling. The mouth radical 口 in 咕 signals a sound-related meaning.
