仅仅在四条主街道的一条街上就有10家以上的奶油软糖商店！
Just on that one four-block Main Street, there are over 10 fudge shops!
另一项技术进步——四路系统，由著名发明家托马斯·阿尔瓦·爱迪生(Thomas Alva Edison, 1847 - 1931)于1874年发明，它可以使四条信息在同一条电报线上同时传送。
Another improvement, by the famed inventor Thomas Alva Edison (1847-1931) in 1874, was the Quadruplex system, which allowed for four messages to be transmitted simultaneously using the same wire.
儿子回答道：“我发现我们家只有一条狗，可是人家却又四条。
Son:" I learned that we have one dog in the house and they have four."
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