每天学一点英语，人生向前一大步！

1. use sth. to do sth.

用某物来做某事

例：Tom uses his pen to write a novel.

汤姆用他的笔来写一部小说。

2. used to do sth.

过去常常做某事

例：My mother used to cook a lot of food.

我的母亲过去常常烹调很多食物。

3. be used to do sth.

＝be used for doing sth.

被用来做某事

例：The phone is used to chat with others.

＝The phone is used for chatting with others.

电话被用于和别人聊天。

4. be used to doing sth.

习惯于做某事

例：Mary is used to getting up early in the morning.

玛丽习惯于早上早起。

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