ruin oneself

例句：

1. 1. I'm afraid I'll ruin my chances of getting a promotion if I don't finish this report soon.
   如果我不尽快完成这份报告，我恐怕会毁了晋升的机会。
2. 2. She was so proud of her achievements that she thought she could ruin herself by boasting about them.
   她对自己的成就感到非常自豪，以至于她认为自己可以通过炫耀来毁掉自己。
3. 3.The company's reputation was at stake; he knew he had to ruin himself to save it.
   公司的声誉岌岌可危；他知道他必须毁掉自己才能挽救它。