"keep sth for oneself" 的造句如下：
1. She keeps her thoughts to herself and doesn't share them with anyone.
2. He decided to keep the surprise party a secret and not tell his friends about it.
3. They decided to keep the information to themselves until they could figure out what to do next.
4. I will keep this bag for myself, as it is a gift for my birthday.
5. Please keep the details of the project to yourself； we don't want to share it with the entire team yet.
希望这些例句对你有所帮助!
