THE story of Nokia's transformation from an obscure Finnish conglomerate into the world's largest maker of mobile phones is an object lesson in the virtue of specialisation.

从一个默默无闻的芬兰公司转变成世界最大的手机制造商，诺基亚的故事是关于专业化功效的一堂标准课程。

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It's a terrible story, and clearly an object lesson for the rest of us. But an object lesson in what, exactly?

这是一个可怕的故事，显然，它给我们大家一个教训实例。不过，准确地说，到底是哪方面的教训？

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The healthcare summit was an object lesson.

医改峰会就如一堂实物教学课。

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To me (d) is the biggest lost opportunity for Microsoft of all and perhaps is the object lesson in what nearly three decades of monopoly buys you.

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The object lesson worth drawing from this story is that just one instance of bad science given the blessing of recognized experts can lead to years of damaging lies that snowball out of control.

FORBES: The Top 10 Brain Science and Psychology Stories of 2012

Frankly, that represents the only route to an England win that I can see and I only hope that Pietersen's men have had the good sense to learn from the object lesson that they have been dealt by an outstanding one-day team.

BBC: Jonathan Agnew column