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 world is full of obvious things which nobody by any chance ever observes."

別難過……世界上有許多人還不知道他們到底是誰或什么。

丙型肝炎的挑戰不僅在于找到病毒，還在于理解它是如何逃避免疫系統的。

The act of writing is an act of optimism. You wouldn't take the trouble to do it if you felt it didn't matter.

You never know with these things when you're trying something new what can happen. This is all experimental.

能源行業不僅僅是開采資源；它是推動進步和塑造未來的力量。

Success is not final, failure is not fatal: It is the courage to continue that counts.