We admire runners who refuse to give up on their goals and who keep trying various methods to reach them.

我们欣赏那些拒绝放弃他们目标的跑步者，他们尝试各种方法来达到自己的目标。

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When I told a group of school children who displayed helpless behavior that a lack of effort led to their mistakes in math, they learned to keep trying when the problems got tough.

当我告诉一群表现出无助行为的学生说，是缺乏努力导致了他们数学上的错误，他们就学会了在问题变得棘手时继续尝试。

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Then there are inventors, who keep trying to squeeze more power from every ray of sunlight.

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As for those who are trying to keep people like him silent, Chuy addresses it with indignation.

CNN: STORY HIGHLIGHTS

Boehner has presented himself as the statesman and the dealmaker who is trying to keep the revolutionaries under control.

CNN: Don't count Boehner out in debt crisis