Science and technology is the value for human services, and mankind is the main body of the society.

科技存在的意义是为了服务人类，而人类才是社会的主体。

youdao

Science and technology is the value for human services, and mankind is the main body of the society.

科技存在的意义是为了服务人类，而人类才是社会的主体。

youdao