Oh, it turns out there's a puzzle piece that allows you to pick a random or as we'll start calling it soon a pseudorandom number scratch a dice or flip a coin, or give you a bit of non-determinism.
它其实是一个游戏,允许你产生一个随机数,我们叫它伪随机数,能够高效地转动骰子，so，that，scratch，can，effectively，roll,或者抛掷一枚硬币，或者给你一个不确定结果。
Oh, oh. There is a scratch on it. Did you notice that?
哎呀，这张桌子有刮痕。你买的时候注意到没有？
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