Polyvinylamine
聚乙烯胺; 聚乙烯胺
🗣️ 情景例句
I continued to teach piano lessons at home.
我继续在家教钢琴。
I want to report a theft.
我要报一宗盗窃案。
On arriving at the shore, the girl struggled up the cliff towards the light she had seen.
到达岸边后，姑娘朝着她看到的灯光方向挣扎着往峭壁上爬去。