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 fact that people are full of greed, fear, or folly is predictable. The sequence is not predictable.

Long-termism is not a slogan, but requires continuous investment in products, teams, and culture.

數學的本質不是使簡單的事情復雜化，而是使復雜的事情簡單化。