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unusedadj.

英 ,ʌn'juːzd | 美 'ʌn'jʊzd
中文adj. 不用的;从未用过的
词根词源
unused (adj.)c. 1300, "unaccustomed," from un- (1) "not" + past participle of use (v.). Meaning "not employed" is recorded from late 14c.
关键词
unused