At first, consumers reached the Internet through a call over a telephone line to an internet-service provider.
起先，消费者通过电话线路向一个互联网服务提供商发送呼叫来上网。
His Telmex telephone company controls 83 percent of land lines in Mexico and is the leading Internet service provider.
他的Telmex电话公司占据了墨西哥83%的电话市场，也是因特网服务的主要提供商。
His Telmex telephone company controls 83 percent of land lines in Mexico and is the leading Internet service provider.
他的Telmex电话公司占据了墨西哥83%的电话市场，也是因特网服务的主要提供商。
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