steal someone’s thunder字面意思偷走某人的雷，引申为抢人风头。

【例句】
That’s right.That’s MY day and I’m not gonna let ANYONE steal my thunder.
没错。那是我的大日子，我可不会让任何人抢了我的风头。

Sandy stole my thunder when she announced that she was pregnant two days before I'd planned to tell people about my pregnancy.
在我打算告诉大家我怀孕的消息之前两天，桑迪抢先宣布她怀孕了，抢了我的风头。