"Not worn out," cried the recruit, "Why, if I step on a dime I can feel if it's head or tails."

“没穿破，”新兵叫道：“为什么？如果我踩到一个一角硬币，我可以知道踩着的那面是公还是字。”

youdao

"Not worn out," cried the recruit, "Why, if I step on a dime, I can feel if it's head or tails."

“没穿破，”新兵叫道：“为什么？如果我踩到一个一角硬币，我可以知道踩着的那面是公还是字。”

youdao

First spin could be head or tails, second head or tails, giving four possible outcomes, HH, TT, HT and TH.

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