坚固堅固 jiān gù — firm
jiān (first tone, high and level) gù (fourth tone, falling)jian1 gu4
Traditional: 堅固
firm
HSK 6· HSK 1–6 (classic)Level 4· 2021 three-band, nine-level proficiency standardadjective
Meanings
firm
firm; firmly; hard; stable
adjective