| 单词 | unusable | 
| 释义 | unusableadj.  (un- prefix1 1b.) ΘΚΠ the world > action or operation > harm or detriment > disadvantage > uselessness > 			[adjective]		 > unserviceable unbriche1303 unable1390 unserviceable1535 inserviceable1607 impracticable1717 condemned1798 unusable1825 unadoptable1843 dis1925 bung1930 u/s1942 inoperable1949 1825    S. Smith Wks. 		(1850)	 418  				All seems doubly dear in proportion as it is antiquated, worthless, and unusable. 1884    Eng. Illustr. Mag. May 494  				[The cave] is now inaccessible and unusable. This entry has not yet been fully updated (first published 1926; most recently modified version published online December 2021). < | 
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