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

格瓦拉第二次漫游南美前對母親說

You can pay for school but you can't buy class.

我并非一無所有，我擁有自由。

I’ve never been a person that has been concerned about what people say. I’m just me.

Science is not just about discovery; it's about making a difference in people's lives.

We’ve been through a lot together, and the bond we have is unbreakable.

每一本書都是作者與讀者之間的一場對話。

自動化徹底改變了我們的交易方式，使其更快、更高效。