unimprovedadj.
英 ʌnɪm'pruːvd | 美 ,ʌnɪm'prʊvd
中文adj. 未加改善的；未耕种的；未被利用的
词根词源
unimproved (adj.)1660s, "not made better," from un- (1) "not" + past participle of improve (v.). Sense of "not developed or taken advantage of" (of land) is recorded from 1781.
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