How do you understand this sentence?

來源: 於 2012-09-11 17:58:15 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

The 1st sentence in the 2nd last paragraph of chapter one of the Great Gat*****y:

 

"Already it was deep summer on roadhouse roofs and in front of wayside garages..."