If I want my kid to do something, I should say yes one out of every ten times.
如果我想肯定孩子的某种行为,我就应该在他的每十次提议中同意一次。
I think he lives here. I've seen him walk up and down the street a few times.
我想他住在这儿。我在路上见过他几次。
Suppose I want to compute square roots a lot of places in a big chunk of code.
假设我想在一大段代码中,计算很多次平方根。
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