When ruthlessly dedicated postal inspector investigates the murder of a co-worker, he finds that the sole witness, a nun, has been targeted by the killers还没(😙)等(💺)陈一说话，陈天豪抢先问道：陈一，是(shì )不(bú )是居住(🛃)房舍已经研究成功(gōng )了？