professional worker的用法和樣例：
例句
- The conditions under which the urban poor and professional people existed as independent social strata have virtually been eliminated.
城市貧民和自由職業者差不多已經失掉成為社會階層的條件。 - We specialize in Professional web design and Affordable Ecommerce, providing complete and the best solution to start up businesses and professionals.
我們擅長專業與經濟的商務，為新公司以及自由職業者提供完整以及最好的方案。
