Bronate
腈氯混剂
🗣️ 情景例句
Use a dictionary and grammar guide constantly.
经常使用字典和语法指南。
Courtesy costs nothing.
谦虚恭敬，不用分文。
Though the doctors did his best, the patient's recovery was slow.
尽管医生竭力医治，但病人恢复缓慢。