色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

The truth is rarely pure and never simple.

"The world is a book, and those who do not travel read only one page."

The beauty of computer science is that it allows us to create worlds within worlds, limited only by our imagination.

世界上沒有像大城市那樣的孤獨。