求讲解英语中的暗喻The PICTURE of those poor people's lives was CARVED so sharply in his heart that he could never forget it.这句话怎么理解成暗喻呢?

问题描述:

求讲解英语中的暗喻
The PICTURE of those poor people's lives was CARVED so sharply in his heart that he could never forget it.
这句话怎么理解成暗喻呢?