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

In science, the most beautiful moments often come from unexpected results.

A good algorithm is like a sharp knife—it does exactly what it is supposed to do with a minimum of effort.

逝者是我們尋求真理的沉默伙伴。

我不是為了紀錄而打球。我打球是因為我熱愛這項運動。