abstract的解释
n. 摘要
a. 抽象的
v. 摘要,抽炼
abstract的例句
He has some abstract notion of wanting to change the world.
他有一种要改造世界的空想。

We may talk of beautiful things, but beauty itself is abstract.
我们尽可谈论美的事物，然而美本身却是抽象的。