impurityn.
英 ɪm'pjʊərɪtɪ | 美 ɪm'pjʊrəti
中文n. 杂质；不纯；不洁
词根词源
impurity (n.)mid-15c., "thing which makes or is impure;" c. 1500, "fact or quality of being impure," from Middle French impurité, from impur (see impure). Related: Impurities.
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