The pith and marrow of sth.

• 某事物的精华

The pith and marrow of sth.的用法和样例：

例句

1. This part is the pride of his speech.
   这部分是他演讲中的精华。
2. I wanted to live deep and suck out all the marrow of life!
   我希望活的深刻，吸取生命中所有的精华，把非生命的一切都击溃。