Precondensate
[化] 预缩合; 预缩合物
🗣️ 情景例句
Language should not be a barrier to love.
语言不应该是爱情的障碍。
I have come to make sure that your stay in Beijing is a pleasant one.
我特地为你们安排使你们在北京的逗留愉快。
What are these?
这些是什么啊？