Polycondensate
缩聚物
🗣️ 情景例句
Weight: eight pounds six ounces.
体重： 八磅六盎司。
It's a small world.
这世界真小。
It was stolen twenty years ago when Dan was a boy of fifteen!
这是20年前丹还是一个15岁的孩子时被人偷走的！