impure

/ɪmˈpjʊr/

形容词

纯度不高的，有杂质的
impure heroin/gold
纯度不高的海洛因／黄金
不纯洁的，淫秽的
She was accused of having impure thoughts about her male students.
她被指责对她的男学生怀有淫邪念头。