专业的的英文：
professional

专业的英文参考例句：
A common [professional] informer 专业密探

Compound specialty; compound discipline 复合型专业

Specialized characteristic 专业特色

Professional fraternity专业联谊会

Expert Mode 专业模式

agency dispatcher专业行政部门调度员

building of specialized platform专业平台建设

His field of expertise was steroids

他的专业领域是甾族化合物。

Professional associations,codes of practice,conduct

专业协会、职业道德规范、职业道德

She is a chemistry minor.

她是化学专业的辅修学生