I think you will find some combination, if you're sort of typical, but that combination doesn't ever have to be fifty-fifty, and I'm sure it very rarely is.

我认为如果你是典型西方人的话,你会发现它们之间的一些关联,但是它们的组合永远都不必是五五开,并且我确信五五开的情况是极少的

耶鲁公开课 - 古希腊历史简介课程节选

and it wasn't until maybe fifty years later that cars came in

而且差不多直到50年后，才有了汽车，

旧金山的公共交通 - SpeakingMax英语口语达人

He didn't even begin to fulfill what we can think of as his epic promise until he was nearly fifty years old, until he had actually lost the use of his eyes, until he could no longer read, and until he could no longer use a pen to write.

但真正开始实行他要写史诗的愿望的时候,弥尔顿已经将近50岁了，那是他已经几乎,丧失了视力，不能再读书，不能执笔写作。

耶鲁公开课 - 弥尔顿课程节选

We aren't close to the Nifty Fifty valuations of 1972.

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In many ways, things hadn't changed much in the fifty years since that description had been written, and with the Okies and Arkies now faring so terribly, social critics were pointing their fingers at California's agricultural elite.

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Fifty-three percent said his race wouldn't be a big factor in their support.

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