Unit 3.ppt

背景知识

A business trip can be undertaken for many job-related reasons. Business trips can be necessary to meet or entertain clients, visit other facilities within the same company, or attend trade shows and seminars. These trips are usually paid for by the employer. In some cases, business travel can be avoided in favor of video and teleconferencing, and other telepresence technologies that are less expensive than physically sending employees to distant locations.