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

生物學的未來在于理解生命系統的復雜性。

If investing is entertaining, if you're having fun, you're probably not making any money. Good investing is boring.

The mind once enlightened cannot again become dark.

人民放在第一位，國家其次，君在最后。