他从来不擅长运动，所以他不能实现他爸爸的梦想成为一个专业的运动员了。

He was never good at sports, so he couldn't live up to his father's dream that he would become a professional athlete.

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对于许多年轻人来说，成为一个专业的运动员看起来像是一个理想的工作如果你成为了一名专业运动员，你就可能创造一种能做自己喜欢的事情的生活。

For many young people, becoming a professional athlete might seem like a dream job. If you become a professional athlete, you'll be able to make a living doing something you love.

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如果你想成为一个专业跑步运动员的话，门槛跑法是几个为数不多的技能中，你必须掌握的。

Running at your threshold is one of the few skills you must learn to be a serious runner.

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