空旷的天空下,看得见的是白云,看不见的是清风,一群大雁由南向北远迂,飞来飞去还是人字形,几声哀鸣偶尔划过天际,跌落心头,我仿佛听见一种回音：人在旅途.What I can see in the boundless sky is the white cloud yet...