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Europeans have long known that eating quail sometimes makes the eater ill, but only recently has it been established that the illness is caused by a toxin present in the quail’s body only under certain conditions.

欧洲人很早就知道吃鹌鹑有时使得吃的人得病，但是直到最近才知道这个病是有一种毒素引起的存在于鹌鹑的体内只有在某些条件下。

Inflation has made many Americans reevaluate their assumptions about the future; they still expect to live better than their parents did, but not so well as they once thought they could.

通货膨胀已经使很多美国人重新定位他们对未来的期望；他们仍然期望过的更好比他们的父母但并没有他们想象的那么好。

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