Coll
n. 胶原；胶质（等于colloid）
🗣️ 情景例句
Hi, Grandpa.
嗨， 爷爷。
Generally speaking, it's cheaper but slower to ship goods by sea than by rail.
总的来说，海运比铁路运输更便宜，但速度慢一些。
You can join the line behind the clock tower.
你可以到钟楼后面排队。