Do I still need to?

來源: ppzcgg 於 2007-01-08 07:55:16 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (147 bytes)

On any route, the narrowest / crowest portion is called the bottleneck. Distance can less important than the situation you meet at the bottleneck.

請您先登陸，再發跟帖！