高三英语telephones内容摘要：
the receiving Early telephone about the wires? to make a call with a handle telephone? not popular (took a long time ) ─ buy,hire ─hear handle telephone →wind (electricity)→ operator→ connect,note the earliest telephones popular? was the first telephone directory printed? how many telephones in 1877 and in 1990? .telephone ┌ ①。阅读剩余 0%
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