Copulas
n. 系動詞（如be,seem,appear等）, （命題主詞與謂詞間的）連系( copula的復數形式 )
??? 情景例句
That's exciting, Harry. What was it?
太令人興奮了， Harry。是什么樣的工作？
The trees emit a fragrance of their own.
各種樹木會發散各自獨有的氣味。
The twins took the basket from the boat and put it under the tree.
雙胞姐妹把籃子從船上拿起，放在樹下。