签证是签发给担任专业性职务的英文

person with specialized knowledge

• 签证:    visa; visé
• 是:    Semantics
• 签发:    sign and issue
• 给:    supply; provide
• 担任:    assume the office ...
• 专业:    specialized subjec ...
• 性:    nature; character; ...
• 职务:    post; duties; job; ...