food 是食物，though是思想，那么food for thought 是什么呢？
food for thought的意思是“something that should be thought about or considered carefully”也就是让人可以深思的事物。
food for thought
引人深思的事；回味无穷
That meeting really gave me food for thought.
那个会议让我深受启发。
This Italian trip gave us all much food for thought.
这趟意大利之旅让我们回味无穷。
