清除 qīngchú HSK7 to clear away Origin Definitions Defs Strokes Stroke Words Sentences Sents 种族清除 zhǒngzúqīngchú ethnic cleansing the mass expulsion or killing of members of an unwanted ethnic or religious group in a society自由基清除剂 zìyóujīqīngchújì radical scavenger chemical substance that removes highly reactive molecules called free radicals from a system