A lot of this is just like the timing is off and our relationship just doesn't match.

这项工作很难，经常会出现,不论多久，关系就是调理不好的情况。

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If our estimates are off then the hypothesis makes no sense, so maybe there's no relationship between dietary fat and breast cancer.

如果评估是无关联的,那这个假说也就没有意义,那么在膳食脂肪和乳腺癌之间,也许没有任何关系

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