impurity UK [ɪm'pjʊə.rɪ.ti] US [-'pjʊr.ə.tˌi] noun MIXED 混杂 countable or uncountable ■when a substance is mixed with another substance and makes it dirty or lower in quality 杂质,不纯•Impurities are removed from the blood by the kidneys.肾脏将血液中的杂质去除。 •The impurity of the water is a health risk.不洁的水质对健康是个威胁。 UK [ɪm'pjʊə.rɪ.ti] US [-'pjʊr.ə.tˌi] noun BAD 劣质 uncountable literary or humorous ■sexual thoughts or behaviour that are wrong or not moral 不纯洁,淫秽 |