简答题：In the USA, not too long ago, most people worked 40 hours a

In the USA, not too long ago, most people worked 40 hours a week, 50 weeks a year. But such traditional jobs are becoming increasing scarce in an age of downsizing, reengineering, and part-time employment. Does the rise of an unstable work force mean that traditional jobs, in which worker can expect a long term relationship with their employers, will soon be out of date? Probably not，although there are likely to be many fewer traditional jobs than in the past．Jobs are increasingly seen as arrangements in which people sell their services to employers in a variety of ways, often starting as part-time work and being promoted into full-time positions later on. For example, new entrants to the labor market may work first as temporary employees, then move into traditional jobs with clients who hired their services and were pleased with their work.