You don't want to lose the value of the system by having messages of a certain type being in mixed categories.

您不会希望因为将某种类型的消息放进混合的类别中而丢失系统的值。

youdao

You don't want to lose the value of the system by having messages of a certain type being in mixed categories.

您不会希望因为将某种类型的消息放进混合的类别中而丢失系统的值。

youdao