Categories
n. 分类；类别（category的复数）
🗣️ 情景例句
I know. I do.
我知道。我会的。
Some persons do first, think afterwards, and then repent for ever.
有些人做了再思考，从而悔恨终身。
They cut big pieces of metal into small pieces.
它们把大块的金属切成小块。