A city is an open canvas ; to complete it is almost impossible because it keeps changing .
城市是一幅展开的画卷，你几乎不可能完成她，因为她总在一刻不息地改变着；
An open canvas , for open interpretation , in an open space in Dashilar .
在大栅栏某个露天场地，一块开放式的画布，一场公开的演绎。
open canvas