这些服务代表了不相联系的完全不同的功能性单元，它们之间一般是没有关联的。

These services represent unassociated distinct functional units, which typically have no relationship.

youdao

这些服务代表了不相联系的完全不同的功能性单元，它们之间一般是没有关联的。

These services represent unassociated distinct functional units, which typically have no relationship.

youdao