Prepolycondensate
预缩聚物
🗣️ 情景例句
Hey, Xiao Li, are you doing anything this weekend?
嘿，小李，这个周末有没有什么事要做？
Go three blocks and make a right. It's right there.
过3个街区，然后往右拐。那里就有个邮局。
When Gary told me that he wanted to be a painter, I refused to give him any money.
当加里告诉我他想要当画家的时候，我拒绝给他钱。