A common sense, human body is also made up of chemical element is introduced in this paper.

本文介绍了人体也是由化学元素组成的这个普通道理；

youdao

A common sense, human body is also made up of chemical element is introduced in this paper.

本文介绍了人体也是由化学元素组成的这个普通道理；

youdao