professional
形容词比较级：more professional
形容词最高级：most professional
名词复数：professionals
词形变化：
同义词：
specialist | authority | occupational | vocational | pro | skilled | expert | maven | specialized | qualified | proficient | adviser | trained | practised | practiced | technician | certified | advisory | accomplished | experienced | licensed | finished | shark | master |
反义词：
amateur | nonprofessional | unprofessional |
词义辨析：
同义:
a.职业的; 专业的
occupational
vocational
同义参见:
technician
specialist
shark2
advisory
adviser
authority
finished
experienced
accomplished
反义:
n.a.专业人员; 专业的
amateur
dilettante