However, the modes of centralized access control and key distribution limit the extension of their group sizes.

然而，由于其集中式访问控制和密钥分配方式，限制了组规模的进一步扩展。

youdao

However, the modes of centralized access control and key distribution limit the extension of their group sizes.

然而，由于其集中式访问控制和密钥分配方式，限制了组规模的进一步扩展。

youdao