For example, there are groups of chimps in the wild who all use stones to break open nuts for food.

例如，有些野生黑猩猩群体个个都会用石头敲开坚果来吃。在其他地方，黑猩猩会用树枝到白蚁窝钓白蚁来吃。

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Send not for a hatchet with which to break open an egg.

别为了破一个鸡蛋而叫人去取斧头——杀鸡焉用牛刀。

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An eagle was trying to break open a nut in his beak when a raven landed on a branch beside him.

正当鹰试图弄开它嘴中的坚果时，一只渡鸦停在了他旁边的树干上。

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The other 2, 650 have turned to the courts to break open markets, with increasing success.

FORBES: Bottled up

Last year bloggers posted videos showing how to break open a Kryptonite lock using a ballpoint pen.

FORBES: On The Cover/Top Stories

These can be designed to break open only where their payload is needed.

ECONOMIST: Monitor