第一部分是发回重审制度的概念和特征。

The first part is about the concept and the characteristics of the remanding rule.

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发回重审的；（三）共同诉讼中一方或者双方当事人人数众多的；

There are a large number of people as a party or parties to a joint action;

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发回重审的；（三）共同诉讼中一方或者双方当事人人数众多的；

There are a large number of people as a party or parties to a joint action;

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