| 单词 | Laurasia | 
| 释义 | Laur·a·sia    (lô-rāzhə)n.  The supercontinent of the Northern Hemisphere that, according to the theory of plate tectonics, broke up into North America, Greenland, Europe, and Asia except for the Indian subcontinent. [New Latin Laur(entia), geologic precursor of North America (after the Saint Lawrence River) + (Eur)asia.]  | 
	
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