短語詞組短語Public Transport Security Command 公共交通保安指揮処public financial security system 公共財(cái)政保障機(jī)制public -security organization 警種;治安機(jī)關(guān)public listed security 上市証券種類public c security committee 公安委員會(huì)public frontier security 公安邊防public health security system 公共健康保障躰系public safetypublic security 公安 返回 public security