8.
AT&T maintained its long-distance network, but in 2005 the company was purchased by one of its former local phone subsidiaries.
AT&T保留了它的长途网络,但该项业务在2005年被原来自己旗下的一家本地电话公司收购。
yǒu guān bù mén yīng lián hé qǐ lái , jǐn kuài bǎ hé nán tǐ yù xiū xián lǚ yóu zhè ge chǎn yè zuò dà zuò qiáng , shǐ qí chéng wéi hé nán jīng jì xīn de zēng zhǎng diǎn 。