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

If you're competitor-focused， you have to wait until there is a competitor doing something. Being customer-focused allows you to be more pioneering.

"Understanding quantum mechanics is not about accepting its strangeness, but about embracing the new logic it presents."

To love is to admire with the heart; to admire is to love with the mind.

寫作是保存真相的一種方式。