be prepared to put one's hand in pocket

例句：

1. 1. We areall ready to put our handsin the fire.
   我们都准备好了，把手伸进火里。
2. 2. She was always prepared toput her hand in the fire for thegreater good.
   她总是准备好为了更大的利益而牺牲自己。
3. 3. He is always prepared to puthis hand in the fire for the greatergood.
   他总是准备好为了更大的利益而牺牲自己。