used to do的用法和樣例：
例句
- He used to do a lot of drinking but has signed off now.
他過去常常喝酒，但現在戒掉了。 - He used to do such work as he could pick up.
他慣常能夠找到什么活就干什么活。
之上介紹獨門塑造，受著作權保障，侵犯知識產權必究
- 近日新詞匯
相關詞典網站：
