Headaches, backache and other pains, light-headedness, jerks and tremors all occur in totally healthy persons.

像头痛、背痛和其他疼痛、头晕、肌肉抽搐、痉挛性震颤等，都是完全健康者也可能发生的。

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Theirlevel-headedness and trust in each other were the keys to their success.

他们头脑清醒且彼此信任，这些都是他们成功的关键。

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Moreover, his confidence had sprung from a more profound source than hot-headedness or bull-like courage. It had been grounded in philosophy.

而且，他的自信不仅是出于一时冲动或者匹夫之勇，而是来自更深层次的、植根于哲学的源泉。

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Signs of dehydration include fatigue, flushed skin, heat intolerance, light-headedness and dark colored urine.

FORBES: Death from Dehydration

But he thinks that American sports have been too contaminated by big-headedness and commercialism.

ECONOMIST: The inner cities

Yet the greatest credit should go to the resilience and level-headedness of the region's own politicians and citizens.

ECONOMIST: Eastern Europe's economies