"What I have seen is a lot of kids really take off because they do have the one-on-one attention and they are up to grade level, if not beyond,as a result of having been in the program."

VOA: special.2010.07.16

That makes sense because we're losing energy, we're going to a level lower level, so we can give off that extra in the form of light. And we can actually write the equation for what we would expect the energy for the light to be.

这很合理，因为我们在损失能量,我们要到一个更低的能级去,我们要以光的形式给出额外的能量,我们可以写下光能量的方程。

麻省理工公开课 - 化学原理课程节选

But if we have credit markets, then people can individually choose to be off the production possibility frontier and at a higher level of consumption than otherwise would.

但如果存在信贷市场,那么个人可以选择超越,PPF曲线的范围,达到比没有信贷市场时更高的消费水平

耶鲁公开课 - 金融市场课程节选

It should level off to a plateau, or start dipping.

CNN: Billy Connolly: From welder to wit

Charles Kernot, the mining analyst at Paribas in London, predicts that British production, which was 31m tonnes this year, will level off to 6m-10m tonnes by 2010, most of it from open-cast mines.

ECONOMIST: Coal in Europe

While our base case scenario envisions pricing declines to level off due to the growth of the smartphone segment that should offset the downward pricing pressures, we assess the downside risk here in the event that the current rate of pricing declines continue into the future.

FORBES: Tumbling Chip Prices Threaten To Slam Qualcomm Back To $40