It's easy to tell when your milk has gone bad, the smell, the curdle, the date on top of the bottle.

牛奶的气味，凝结状态和瓶口上标注的日期可以很容易地告诉你牛奶是否变坏了。

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Greenberg a former billionaire who built two Internet consulting companies before the 2000 collapse of those stocks reportedly reduced his net worth by as much as 90 percent had insisted on the witness stand that he never intentionally sold a bad bottle of wine.

WSJ: Billionaire wins wine fight; jury awards him $380K