英 [prəˈfeʃən(ə)l] 美 [prəˈfeʃən(ə)l]
adj. 职业的，专业的；非常内行的，极为称职的；（人）职业性的，非业余的；由职业人员参加的；<非正式，贬>（人）坚持某种活动特征（或特点）的
n. 专业人员，专业人士；内行，专家；职业选手；（受雇于高尔夫或网球协会的）职业教练
[ 复数 professionals 比较级 more professional 最高级 most professional ][1]
柯林斯英汉双解大词典
professional /prəˈfɛʃənəl/ CET4 TEM4
1.ADJ Professional means relating to a person's work, especially work that requires special training. 有关职业的 [ADJ n]
2.professionally ADV 职业上地
3.ADJ Professional people have jobs that require advanced education or training. 专业的 (人士) [ADJ n]
4.N-COUNT Professional is also a noun. 专业人士
5.ADJ You use professional to describe people who do a particular thing to earn money rather than as a hobby. 职业的 (运动员等)
6.N-COUNT Professional is also a noun. 职业人士
7.professionally ADV 作为职业地 [ADV after v]