11.Even after this milestone, the number of American telephone operators continued to grow, peaking in the mid-20th century at around 350,000. The occupation did not (mostly) disappear until the 1980s, nine decades after automation was invented.
即使在这一里程碑之后, 美国电话接线员的数量仍在继续增长,在 20 世纪中叶达到顶峰, 约为 350,000。 直到 1980 年代,也就是自动化发明九年后, 这项职业才(大部分)消失。机翻
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