But recent discoveries suggest that strokes and heart attacks may have been bedeviling humans for millenia.

但最新研究发现，中风和心脏病很可能已经困扰了人类几千年。

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Previous changes in carbon dioxide levels were due to natural factors, such as rock weathering, and occurred very sluggishly, over many millenia.

以前二氧化碳的含量水平变化是因为自然因素，像持续数千年缓慢进行的岩石风化。

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For the record, the body of water in question has been known - in maps, literature and official usage - as the Persian Gulf for more than two millenia.

根据记载，这片有争议的水域一直-在地图、文献和官方用语中-以波斯湾（的名称）存在了2000多年。

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Their journeys began a millenia before the arrival of the first European explorers in the 16th Century.

UNESCO: Mata Ora : The Living Knowledge 2009

Just upstream from modern day Brazzaville city are the huge "cataracts" - rocks which, for millenia, have stopped river boats passing this point.

BBC: Congo Brazzaville's hidden war

It was by no means a Jungian invention, for mystics and seers have used it for millenia to enter another, more subtle world.

FORBES: The First Immortal Does Not Live Among Us Today