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
Did you see the washcloth
你看见浴巾
Facts are stubborn things.
事实是不容改变的东西。
When she came in with the last course -- a huge pudding --
当她端着最后一道菜——一大盘布丁——