He decided to turn professional.

他决定转为职业人员。

《牛津词典》

The truth about players' heights is revealed before they turn professional.

关于球员身高的真实性在他们成为职业选手前被透露过。

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Instead of going to college, he chose to turn professional and in 1996 became the youngest player ever to join the NBA.

他没有上大学，而是选择了去当一名职业选手。在1996年，他成了nba里有史以来最年轻的球员。

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The decision by the 15-year-old golfer to turn professional comes just before she turns 16 on Oct. 11.

FORBES: Magazine Article

With that kind of money on offer, it is not surprising that some old hands have decided to turn professional.

ECONOMIST: Where there��s MUD, there��s brass

My enjoyment is working with this talent, seeing them reach their potential and then making that choice (whether to turn professional).

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