I do some work for Smith and Dale,Your company's accounting firm.
我为贵公司的会计顾问公司 Smith和Dale事务所里做一些工作。
People who work in offices are frequently referred to as white-collar workers' for the simple reason that they usually wear a collar and tie to go to work.
坐办公室的之所以常常被称作“白领工人”,就是因为他们通常是穿着硬领白衬衫,系着领带去上班。