1 to clean sth thoroughly using chemicals to remove bacteria ﹙用化学制剂﹚消毒，使清洁

2 to remove the parts of sth that could be considered unpleasant 去除…中使人不快的内容；净化: This sanitized account of his life does not mention his time in prison. 这份生平记述对他的不光彩之处略而不表，没有提及他蹲监狱的日子。