professional skills 专业技能
professional ethics 职业道德
professional development 职业发展
1. You should seek advice from a professional person.
你应该向专业人士寻求建议。
2. Every professional person must follow the code of conduct.
每一位专业人士都必须遵守行为准则。
A: Do we need to hire a professional person for this project?
A：我们是否需要为这个项目雇佣一位专业人士。
B: Yes, we need someone with deep expertise.
B：是的，我们需要有深厚专业知识的人。
1) 专业人士
2) 业内专家
3) 职业从业者
1. 专业人士
e.g.
He is a professional person in the medical field.
他是医学领域的专业人士
noun
1. A person who has specialized knowledge and training in a specific area.
Synonym: expert, specialist