防控 fángkòng to prevent and control Origin Definitions Defs Strokes Stroke Words Sentences Sents 疾病预防控制中心 jíbìngyùfángkòngzhìzhōngxīn CDC Centers for Disease Control and Prevention病虫害绿色防控 bìngchónghàilǜsèfángkòng green pest control environmentally friendly methods of pest control and prevention