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Biologists have long debated about whether egg production in birds is biologically highly costly, some theorizing that egg production is energetically or nutritionally demanding.

长期以来，生物学家一直在争论鸟类的产蛋在生物学上是否具有很高的成本，有的理论认为产蛋对能量或营养的要求很高。

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If you ate the same food day after day after day, you'd have too many of some nutrients and too little of others, and you become nutritionally deficient.

如果你日复一日的只吃一种食物,某类营养就会过剩,而另一些则会不足,你就会营养不良

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Mighty as the plant is nutritionally, I love it most of all for its peppery bite.

WSJ: Watercress, Springtime's Superfood

Initially that month, Mr. Jobs attributed his weight loss to a "hormonal imbalance" that was being treated nutritionally.

WSJ: Apple Co-Founder Steve Jobs's Rare Disease Ran Predictable Course

If the first product on the market had been a nutritionally enhanced rice rather than a high-tech tomato, consumer response might now be very different.

ECONOMIST: In defence of the demon seed