单语范例（未经PONS编辑处理）
The president serves as the chief executive officer of the organization.
en.wikipedia.org He served as chief executive officer of the company from 1998 through 2013, and was president from 1993 to 2013.
en.wikipedia.org The town manager oversees the public employees and serves as Chief Executive Officer.
en.wikipedia.org He would later go on to become the firm's president and chief executive officer.
en.wikipedia.org He is currently Chief Executive Officer of the city where he manages day to day operations of the city's government.
en.wikipedia.org