| 单词 | urson | 
| 释义 | ursonn. Zoology.   The Canada porcupine,  Erethizon dorsatus. ΘΚΠ the world > animals > mammals > group Unguiculata or clawed mammal > order Rodentia or rodent > superfamily Hystricomorpha (porcupine or guinea-pig) > 			[noun]		 > faimily Erethizontidae > genus Erethizon (urson) urson1774 cawquaw1775 urchin1796 1774    O. Goldsmith Hist. Earth IV. 114  				The urson..is a native of Hudson's Bay... Several of the trading Americans depend on them for food, at some seasons of the year. 1833    Penny Cycl. I. 443/2  				The urson..is the only species of porcupine..which appears to have the power of climbing trees. 1891    E. Roper By Track & Trail xvii. 253  				There are several kinds of grouse,..wolves, ursons. This entry has not yet been fully updated (first published 1926; most recently modified version published online June 2018). <  | 
	
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