a person who does a job that needs special training and a high level of education 专业人员；专家◆You need a professional to sort out your finances. 你需要专业人员替你理财。◆The cafe is a favourite with young professionals. 咖啡馆受到年轻专业人员的喜爱。◆a staff of over 500 IT professionals 由 500 多名信息技术专业人员组成的员工队伍⨁a competent / dedicated / an experienced / independent professional 有能力的／有献身精神的／有经验的／独立的专业人员
a person who has a lot of skill and experience 专门人才；内行；技术精湛者；老练的人◆This was clearly a job for a real professional. 这份工作显然需要一个真正的内行才能担当。⨁a real / true professional 真正的行家