I want to start today…… here's my thing. Hold on. There I go. Hey. I want to start today -- talk about the structure of a polypeptide. 我今天要说的，就是……稍等。行了。嘿，我今天要说的，是关于多肽化合物的组织结构。 I get a lot of people as
奥巴马获胜演讲（文言文版） Barack Obama Hello，Chicago! 芝城父老，别来无恙， If there is anyone out there who still doubts that America is a place where all things are possible, who still wonders if the dream of our founders
"Stronger, Smarter, and Swifter Defenses" This morning, upon recommendation from the Secretary of Defense and the Joint Chiefs of Staff, the President announced a new approach to missile defense in Eu
But as social scientists, we continue to ask 但作为社会学家，我们继续问 about possible alternatives. 是否有其他可能 We've said, well maybe older people 也许老年人 report more positive emotions 报告更多的积极感受 because they'r
