流离失所: become destitute and homeless; be compelled to leave their homes and roam about for safety, jobs, food, etc.; be constantly on the move, filling odd jobs that comes one's way; be forced to
承诺为无家可归者采取行动联合宣言: joint declaration of commitment to action for the homeless
离乡背井流离失所: be forced to flee one's home as a refugee and be separated from one's family