Both concrete and abstract sentences have communicative value, but the value of the former is different from the later.

具体的句子和抽象的句子都有表述性，但表述性的特点并不相同。

youdao

Experiment was divided into two items according to the categories of the associations: concrete and Abstract: a control item was conducted.

实验组依联想性质分为具体与抽象二项，另进行一项对照实验。

youdao

The expression of aesthetic emotion is the units of concrete and abstract, rationality and sensibility as well as the popularity of society and the difference of individual.

审美情感的表现，是具象与抽象、感性与理性的有机统一，是社会普遍性和个体差异性的统一。

youdao

Bonnard never painted from life, only from memory, which explains why his painting feels at once concrete and abstract.

FORBES: Magazine Article

The ethical approach which includes the reflection concerning the relationship between the abstract principles and concrete institutional mechanisms, aims to find a reply to this question.

UNESCO: Social and Human Sciences

Take the abstract and make it concrete.

FORBES: Responsibility and the Ethics of Inoculation