Polyacrylamide
[化] 聚丙烯酰胺
🗣️ 情景例句
about your salaries and your savings.
关于薪资和储蓄。
I know the boy whose father is a banker.
我知道那个男孩的父亲是银行家。
It's odd that they didn't reply our letter.
他们没有给我们回信，这真奇怪。