professional
用法要点
句型搭配
作为形容词时，常用于修饰名词，表示专业性或职业性；作为名词时，指专业人士，常与冠词或所有格连用。
介词用法
与介词 in 连用表示在某个领域专业，如 in a professional capacity；与 at 连用表示在专业方面擅长，如 good at professional tasks。
语域说明
在正式和非正式语境中都常用，但更偏向正式或商务场景，强调高标准、技能或职业身份。
基础例句
She always dresses in a professional manner for her office job.
她上班时总是穿得很专业。
He is a professional photographer who travels around the world for work.
他是一名专业摄影师，经常为工作环游世界。
We need to hire a professional to fix the plumbing issue in our house.
我们需要雇一个专业人士来修理家里的水管问题。
Her professional attitude helped her succeed in the competitive industry.
她的专业态度帮助她在竞争激烈的行业中取得成功。
高级例句
The company adheres to strict professional standards to ensure quality control in all projects.
公司遵循严格的专业标准，以确保所有项目的质量控制。
In academic research, it is crucial to maintain professional integrity when citing sources.
在学术研究中，引用来源时保持专业诚信至关重要。
The consultant provided professional advice on optimizing the business's operational efficiency.
顾问就优化企业运营效率提供了专业建议。
Professional development programs are essential for employees to enhance their skills in the evolving market.
专业发展计划对于员工在不断变化的市场中提升技能至关重要。
高频搭配
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常见错误
错误使用了名词 profession 作为形容词；正确形式是形容词 professional，表示专业的。
介词 at 使用不当；应直接使用名词短语 professional teacher 来表示职业身份，更自然简洁。
近义词辨析
expert
expert 强调在特定领域有高超技能或知识，可能不一定是职业身份；而 professional 更侧重于职业化、标准化或与工作相关的专业性。
She is an expert in ancient history (强调知识渊博), but she works as a professional historian (强调职业身份)。
occupational
occupational 主要描述与职业或工作相关的事物，如 occupational hazard；而 professional 除了职业含义，还常暗示高标准、技能或正式行为。
Occupational therapy focuses on job-related skills (职业治疗), while professional conduct refers to ethical behavior in work (专业行为)。