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

"Approximation algorithms are a testament to the power of compromise in achieving practical solutions."

如果人們有時不做愚蠢的事情，就不會有聰明的事情發生。

Success is cool, but happiness is better.

要理解一個社會，看看它的垃圾。