And that's all that's big enough to pass through or small enough to pass through. And if we go up even just one row on the periodic table to potassium, what we actually see is now that it's going to be too large, and, in fact, a potassium solvated with one water molecule won't go through our channel.

就是这样刚好大到它通过,或者说刚好小到它通过,即使我们再沿着周期表往下走仅仅一行到钾离子，我们看到的就将是它的个头太大了，实际上，溶解于一个水分子的单个钾离子,不能穿过我们的通道。

麻省理工公开课 - 化学原理课程节选

Of course, we have to also know how to plug in the numbers so we can pass all the tests, but it's good to understand the nature of the edifice set up by Newton.

当然,我们首先要知道怎么代数字,这样我们考试才能过关,但是如果能理解,牛顿的这一伟大杰作的本质就更好了

耶鲁公开课 - 基础物理课程节选

When the ball came back, Jamie Robinson snapped up brother Nicky's bouncing pass to give Ben Blair the time and space to set up Halfpenny's chance.

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Alan Quinlan's misdirected pass set up Jonnet and the winger won the race to the line to score.

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Lamb exposed some woeful tackling after a turnover near the Falcons 22 before lock Marco Bortolami's overhead pass set up a simple try for Balshaw.

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