Chrysenic acid
[医] ┌酸, 苯萘甲酸
🧩 词语组成解析
🗣️ 情景例句
I'd like to say something first.
我想先说几句话。
It's been 5 years since I last saw you.
我已5年没见你了
Education, with its cycles of instruction so carefully worked out,
教育，以其教学周期如此精心地安排，