• "If you were to design the perfect plug for a child's airway, you couldn't do much better than a hot dog tip."

    VOA: standard.2010.02.23

  • I want to finish this discussion by including the anti-bonding orbital, and this is a tip for you when you're drawing your molecular orbital diagrams, any time you draw a bonding orbital, there is also an anti-bonding orbital that exists.

    我想要以包含反键轨道,来结束这个讨论,告诉你们一个,画分子轨道图的小技巧,任何时候你画一个成键轨道,都会存在一个反键轨道。

    麻省理工公开课 - 化学原理课程节选

  • But TEFRA was coupled with a promise by Tip O'Neil and Bob Dole that for every dollar in tax increases government spending would be cut by 3 dollars.

    但前提是,欧尼尔和鲍勃·杜尔必须承诺,每增税1美元,政府财政支出须减少3美元。

    斯坦福公开课 - 经济学课程节选

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