Polyanhydride
[化] 聚酐
??? 情景例句
in such a short amount of time.
在這么短的時間內。
What youth is used to, age remembers.
青年時經常做的事，老年時卻能記得起。
I'll ask her to call you. Goodbye.
我會叫她給你回電話的。再見。