Polyethylenamine
聚乙烯胺
🗣️ 情景例句
Don't forget Susan.
别忘了Susan。
Though you cast out nature with a fork, it will still return.
本性难移。
This organic process, often leading to moments of extraordinary self-discovery,
这种有机的加工过程往往达到不寻常自我发现的境界，