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

我不想當下一個喬丹，我只想當科比布萊恩。

The study of mathematics is the indispensable basis for all intellectual and spiritual progress.

DNA的雙螺旋結構不僅美麗，而且優雅簡單。

The state is the most important institution in human society because it is the only one that can legitimately use force to maintain order.

心靈是解釋行為時不必要的建構。