Penturonic acid
[化] 戊糖醛酸
🧩 词语组成解析
🗣️ 情景例句
I represent the Hassan Trading Company.
我是哈森贸易公司的代表。
What's learnt in the cradle lasts till the tomb.
小时学过的，至死不忘记。
When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.
最近有个学生看见两个工人在学校门外用风钻干活，马上打电话报告警察，说有两个学生装扮成工人，正在用风钻破坏路面。