Copulas
n. 系动词（如be,seem,appear等）, （命题主词与谓词间的）连系( copula的复数形式 )
🗣️ 情景例句
I've got three days off next week.
下星期我有三天假。
No one is a fool always, every one sometimes.
无人总是当傻瓜，人人有时当傻瓜。
The thieves' car was badly damaged and easy to recognize.
小偷的车损坏严重，很容易辨认。