a life for a life的用法和样例：
- People come to your life for a reason, a season, or a life time.
- Now, in his time of need, the turtle had come to rescue him: a life for a life!
- He fought for his life for a month before he died.
- A pair of lovers was associated for a life union .
- I've left from ur life for a couple of months.
- any-thing for a quiet life经不起别人絮聒,只好...