An Entity class needs a primary key.

Entity类需要一个主键。

youdao

Any information exchanged as part of those requests (e.g., parameters) is represented by an instance of an IO Entity class.

任何作为那些请求一部分的交换的信息(例如，参数)都由一个IO实体类的实例表示。

youdao

I'll start by creating a base class that holds an instance of an Entity object.

我将首先创建一个基类，用于容纳entity对象的一个实例。

youdao

It furthers their class-based argument and allows them to find either an entity that is indeed responsible or, perhaps, a scapegoat that can take the fall.

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