U 主旨,要旨 the real meaning, without the unimportant details
U 实质; 内容 importance, especially in relation to real life
词汇搭配
动词+～
discover a substance 发现一种物质
have substance 有实质内容
形容词+～
hard〔plastic〕 substance 坚硬〔可塑性强〕的物质
介词+～
without substance 毫无内容
句型例句
Soil consists of various chemical substances.土壤由各种化学物质组成。
Is there any substance to their claim?他们的要求有实质内容吗?
The substance of their talk is condensed into a paragraph.他们谈话的要旨被压缩成一段话。
There isn't anything of real substance in her book.她的书中没有任何真正实质性的内容。
