Up on the roofs of large buildings, meanwhile, the carriers are installing wireless routers to offload about 20 percent or more of the peak traffic to Wi-Fi.

与此同时，在大型建筑物的屋顶上，运营商正安装无线路由器来把大约20%以上的高峰期流量转移到Wi - Fi上去。

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Up on the roofs of large buildings, meanwhile, the carriers are installing wireless routers to offload about 20 percent or more of the peak traffic to Wi-Fi.

与此同时，在大型建筑物的屋顶上，运营商正安装无线路由器来把大约20%以上的高峰期流量转移到Wi - Fi上去。

youdao