人民防空工程 rénmínfángkōnggōngchéng civil air defense project Definitions Defs Origin Strokes Stroke Words Sentences Sents 人民防空 rénmínfángkòng civil air defense measures taken to mobilize and organize the population against air attacks工程 gōngchéng noun project a large-scale construction or engineering project; any undertaking or program that requires significant time, labor, and resources
