"decide to do sth" 是一个常用的英语短语，意思是“决定做某事”。在这个短语中，"to do sth" 是一个不定式短语，表示将要执行的动作或决策。以下是一些使用这个短语的例子：
1. I decide to go to bed early tonight.
2. I decide to go shopping tomorrow.
3. When the weather began to rain, I decided to go home.
4. You first have to decide to do it.
5. We decide to do it on your suggestion.
6. What'd you decide to do about the movie？
7. I decide to study hard from now on.
8. We decide to do so.
9. Mr Smith decided to buy a new computer.
10. She decided to quit her job and start a new business.
希望这些例子能帮助你更好地理解和使用 "decide to do sth" 这个短语。
