Polyethylenamine
聚乙烯胺
🗣️ 情景例句
It really looks good on you.
穿在你身上真是好看。
The great fish ear up the small.
弱肉强食。
While early settlers had killed bison for food, now the killing became more widespread.
早期的殖民者只是以杀野牛为食，这时屠宰野牛就更为广泛了。