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Passing Trains




Thus, although the probability that the first train will be eastbound is three times larger than otherwise, the time you have to wait for it is also three times larger, which makes things even.

因此,虽然第一列车为东行车的可能性是西行车的三倍,可你等它的时间也是等西行车的三倍，这样两个倍数相互抵消。

make things even: balance things扯平了
---Mother raised a daughter and a son. She tried her best to make things even in treating the children.


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