Honey is to a bee what milk is to a cow .

蜂蜜与蜜蜂的关系如同牛奶和奶牛的关系。

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A tantalizing prospect because almost any organism, from a bacterium to a cow, can be programmed to synthesize GFP.

这个前景是美好的，因为从细菌到牛都可以用来合成荧光蛋白质。

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The child hurried the cow through the dark forest, following a narrow path that led to her grandmother's home.

VOA: special.2010.04.03

So, it's awkward to have to wait for a cow to get infected before you can vaccinate a population.

在给人们预防接种之前,你只有干等着,直到有一头奶牛感染了病毒才行

耶鲁公开课 - 生物医学工程探索课程节选

So if you want a real milk to drink, go to the cow and tell, "Give me fresh milk."

所以，如果你想喝真正的牛奶了，就去跟牛说，“给我点儿新鲜牛奶吧。”

问上门厨师 - SpeakingMax英语口语达人

Ranchers are urged to talk about the hours they spend caring for cattle all those trips to the pasture at 3 a.m. to help a laboring cow give birth.

WSJ: Beef Industry Carves a Course

Another problem is that the two sides disagree about how to establish a cow's age.

ECONOMIST: An end to Japan's ban on American beef may be in sight

"Russia's Unknown Agriculture or The Need to Own a Cow", Novoye Izdatelstvo, 2006.

ECONOMIST: Sources and acknowledgments