你也应该认真考虑自己家里是否真的需要无线上网接入设备。
You might also consider whether you really need wireless Internet access in your home.
这两家公司主要经营大城市间的客运业务，车次频繁，而且提供车内无线上网服务。
The two companies offer high-frequency service between major U.S. cities and wireless Internet service on board.
这将促使更多人使用无线上网设备。
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