hereinafter referred to as，英文合同常见表达，通常在需要对前述主体作出简称以使下文内容更加简单明了时使用，译为“下称”、“以下简称”等

例：

出租方(甲方)Lessor (hereinafter referred to as Party A) ：

承租方(乙方)Lessee (hereinafter referred to as Party B) ：

根据国家有关法律、法规和有关规定，甲、乙双方在平等自愿的基础上，经友好协商一致，订立本合同。

In accordance with relevant Chinese laws, rules and regulations ,Party A and Party B have reached the agreement through friendly consultation based on the principle of equality and voluntariness.