Gerundival
a. 動形詞的
??? 情景例句
Let's buy some potted plants for the dining room.
我們需要買一些盆栽裝飾飯廳。
He is good at reading and writing, but he wishes he knew how to understand and speak better.
他的閱讀和寫作是強項，但他希望知道怎樣去理解和說得更好。
What are you up to?
你在忙什么呢？