此外，这种层次模型还将降低因特网路由器的成本和复杂度。

In addition, the hierarchical model will reduce the cost and complexity of Internet routers.

youdao

此外，这种层次模型还将降低因特网路由器的成本和复杂度。

In addition, the hierarchical model will reduce the cost and complexity of Internet routers.

youdao