伤脑筋傷腦筋 shāng nǎo jīn — knotty
shāng (first tone, high and level) nǎo (third tone, dipping) jīn (first tone, high and level)shang1 nao3 jin1
Traditional: 傷腦筋
knotty
HSK 6· HSK 1–6 (classic)Levels 7–9· 2021 three-band, nine-level proficiency standardverb
Meanings
knotty
knotty; troublesome; bothersome
verb