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He would try to explain it this way when students asked for a top grade just for studying hard in chemistry class: What if a baseball player came to spring training and worked harder than all the others, but still could not play well.

VOA: special.2009.03.12

suppose I asked you to time a 100 meter spring in the Olympics, but I give you a stopwatch that is measured in units of 15 seconds?

如果我要求你,在奥林匹克数给100米短跑计时，但我会给你一个秒表,它可以测出15秒的大小？

麻省理工公开课 - 固态化学导论课程节选

If you connect the body to a spring, which is neither compressed nor extended, there's no force acting on it.

如果将一个弹簧连在这个物体上,弹簧既没有被压缩也没有被拉伸,也不会有力作用在它上面

耶鲁公开课 - 基础物理课程节选

Admittedly, as Apple gets larger, it becomes increasingly difficult to spring back ahead of the market.

FORBES: What Does It Mean That Apple Had Its Worst First Half Since 2008?

It's not clear whether he will report to spring training with the Yankees in Tampa, Fla.

WSJ: Rivera says Yankees will support Rodriguez

And South Africa's first-innings centurion Jacques Kallis called on his team-mates to spring from the blocks.

BBC: Alastair Cook believes second Test is in the balance