Precondensate
[化] 预缩合; 预缩合物
🗣️ 情景例句
I really appreciate you coming over to help me with my math.
我真的很感谢你过来帮我补习数学。
I'll call the roll before class.
课前我要点名。
You remember my friend who helped me out?
你还记得曾经帮助我摆脱困境的那位朋友吗？