二氧化碳 èr yǎng huà tàn — carbon dioxide CO2
èr (fourth tone, falling) yǎng (third tone, dipping) huà (fourth tone, falling) tàn (fourth tone, falling)er4 yang3 hua4 tan4
carbon dioxide CO2
HSK 6· HSK 1–6 (classic)Levels 7–9· 2021 three-band, nine-level proficiency standardnoun
Meanings
carbon dioxide CO2
carbon dioxide CO2
noun