PSINet

常见例句

• They also own the communications gear that directs traffic over the Internet. There are only a handful of major backbone providers, including MCI, WorldCom, Sprint Corp. (FON), GTE, and PSINet Inc. (PSIX).
  他們還擁有指揮因特網信息傳遞的通信控制裝置。大的主乾網提供商竝不太多，包括MCI、WorldCom、Sprint Corp.;(FON)、GTE和PSI Net inc
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