At the age of 52, won his first pilot certificate; at the age of 54, propelled his first flight around the world; at the age of 57, Dr Zhang Bo would challenge himself with second flight around the world. He would share his dreams of flying in different formations and he would host reunions with volunteers from cities along his aviation route.
召集人：张博（从芝加哥连线）
co-host：任幼安
