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

我們必須從靈魂中根除對未來所帶來的一切恐懼和恐怖。

"A book is a dream that you hold in your hand."

The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

Innovation doesn't happen by accident; it requires intentional investment in people and ideas.

Chemistry is not just about what you can make, but how you can make it.

如果你想脫穎而出，你必須愿意與眾不同。

"The greatest glory in living lies not in never falling, but in rising every time we fall."

成功不是幸福的關(guān)鍵。幸福才是成功的關(guān)鍵。如果你熱愛你所做的事情，你就會成功。