C584 Security Work

Lu Yuan followed Chung Yun to the stairwell and said, "Professor Jiang, if you have anything to say, just say it!"

Chung Yun suddenly looked troubled, as if he was hesitating about what to say.

After a while, Chung Yun finally made up his mind. He looked at Lu Yuan and said, "Mr. Lu, to tell you the truth, my mother's heart disease is very serious. If she falls down again