Prepolymer
[化] 预聚物
🗣️ 情景例句
Excuse me, but may I ask how old you are?
对不起， 我能问一下你多大了吗？
Dad is building another room onto the back the house.
爸爸另外在屋子的后面盖一个房间。
Is there any way of ensuring we'll have enough time for our talks?
我们是否能保证有充足的时间来谈判？