This metallic core gives Earth its characteristic magnetic field, which has played an extremely important role in the history of our planet.

这种金属核赋予地球特有的磁场，在地球的历史上发挥了极其重要的作用。

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So there is a characteristic prideful look, but in contrast to the basic emotions, the face only plays a small role, with a slight smile creeping across it.

所以骄傲也具备有特色的外观，但是相比其他基本情绪而言，面部表情只起到一个小作用，只有微微一笑浮上面庞。

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In this sense consciousness and its characteristic relation to other people obviously play an important role in the processes of stabilizing social systems.

在这个意义上，意识和它与其他人互动的特性，在稳定社会系统的过程中，有重要作用。

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He brought characteristic gravitas to the role of Abraham in the 1966 production of The Bible before taking the lead role in Patton for which he will probably be best remembered.

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The latter characteristic certainly suits his latest role - that of an alien visitor, Klaatu, who arrives on Earth to warn of an impending global apocalypse.

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