Coll
n. 胶原；胶质（等于colloid）
🗣️ 情景例句
I am unfamiliar with law.
我对法律不熟悉。
But this doesn't mean that Mr. Li is a bookworm.
但这并不意味着李先生是个书呆子。
After that day they were separated, never to see each other again.
那日一别，他们再没重逢。