| 单词 | Great Rift | 
| 释义 | Great Rift [`grāt `rift]  ASTRONOMY An apparent break in the Milky Way between Cygnus and Sagittarius caused by a series of large, dark overlapping clouds about 100 parsecs (2×1015 miles or 3×1015 kilometers) distant in the equatorial plane of the Galaxy.  | 
	
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