It's the difference between ball players and NBA players, the difference between a writer and an author.

这就是玩球的人跟NBA球员的区别；也就是一个写手与职业作家的区别。

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Players sometimes kick the ball, but they also throw the ball and run with it.

球员有时踢球，但他们也会把球扔出去，然后带球跑。

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It can study the movements of human players and the speeds of the ball.

它可以研究人类球员的动作和球的速度。

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The skills and records of black ball players were as good as major league white players.

VOA: special.2009.04.05

So in reality, we need to take into account a little bit more, and in particular, we need to take into account the abilities of players to hit the ball accurately and/or hard.

所以分析实际情况时要深思熟虑,比如说,我们需要把罚球队员的,射门力度跟精准度考虑在内

耶鲁公开课 - 博弈论课程节选

Baseball players hit the ball.

VOA: special.2009.09.20

The committee will consider umpires, managers, executives and ball players from this period of baseball history.

FORBES: Cubs Icon Ron Santo Granted Baseball Immortality

The speed of the game has dramatically changed and the skills of the ball players have evolved as well.

FORBES: The Plight of The Umpires And The Inevitability Of Instant Replay

Everyone else involved in the game sequences were either actual ball players, or actors with organized ball playing experience.

CNN: Review: Costner hits home run 'For Love of the Game'