He wondered aloud if it might be worth buying one of those automated coin-counting machines to speed up my weekly bank trip. I saved up and invested.

爸爸很想知道买一台自动硬币计数机是不是值得，这样可以减少每周去银行的时间。我攒了些钱，买了一台。

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Students at Stanford University recorded thousands of coin tosses with high-speed cameras and discovered the chances are approximately fifty-one to forty-nine.

斯坦福大学的学生用高速摄像机记录了成千上万次抛硬币的过程，发现正面朝上与正面朝下的概率大约是51%对49%。

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