Prepolycondensate
预缩聚物
🗣️ 情景例句
No. If we buy a house, I want to be able to handle it alone.
不， 如果我们买房子， 我希望能够自行负责。
Kill the goose that lays the golden eggs.
杀鸡取金蛋；只图眼前需要，断绝将来财源。
At the moment in my country there are very few such schools.
目前在我国这类学校太少了。