I don't work like that. It's not professional...There is rules.

——Leon?
是我就不会那么做,那不专业,这行是有游戏规则的。
——《这个杀手不太冷》?
一、关于professional,你应该知道的用法有
adj.
1.职业(上)的;从事特定专业的?connected with a job that needs special training or skill, especially six that needs a high level of education
A lawyer is a professional man.
律师是从事专门职业的人。
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2.职业性的,非业余性的?having a job which needs special training and a high level of education
This professional opinion may add the users' credence to the financial statements of the business.
这些职业性的意见可以增强报表使用者对企业财务报表的信任度。
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3.很内行的;极称职的;高水平的?showing that sb is well trained and extremely skilled
While Celia disliked the statement's emphasis and some allusions, she conceded mentally that Stavely sounded professional and impressive.
西莉亚尽管不喜欢声明强调的重点和一些暗示,但内心里还是承认斯塔弗利的话听起来很内行,也很能打动人心。
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n.

1.职业选手 [C]?person who does a sport or other activity as a paid job rather than as a hobby
He plays the flute like a professional.
他吹长笛已达到专业人员的水平。
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2.专家,内行 [C]?a person who does a job that needs special training and a high level of education
A hotelier is a professional in the hotel business
旅馆经理是旅馆业的内行。
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二、学会professional的用法了吗?来做个小测试巩固一下
After he won the amateur championship he turned _____________.
他获得业余赛冠军后就转为职业运动员了。?