You could run through a little loop to say keep trying until you get one. But one of the ways I could deal with it is what's shown here.

你可以运行一个小循环来不断地做,直到得到一个输入,但你应该做的是弄明白这里到底要干什么。

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But then once they get over, "Hey, what are you doing to me?"

但一旦他们明白过来，他们会说：“喂，你想要我怎样啊？”

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