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1·The Use of the Body Language in Elementary School.

利用肢体语言的小学。

2·The proteins are the basic elementary component of life, while they are responsible for carrying through the functions of body cell.

蛋白质是生命体的基本组成成分，同时它们负责我们体细胞多种功能的执行。

3·Rural high schools are the main body of our country's elementary education.

农村中学是我国基础教育的主体。