一旦把计算机连上因特网，你会发现网上的许多服务---如电子邮件，都是免费的。
Once you connect your computer to the Internet , you will find that many services on the Internet email for me----are provided free of change.
一旦把计算机连上因特网，你会发现网上的许多服务---如电子邮件，都是免费的。
Once you connect your computer to the Internet , you will find that many services on the Internet email for me----are provided free of change.
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