The two companies offer high-frequency service between major U.S. cities and wireless Internet service on board.
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。
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