美国工厂高薪工流失最为严重

white-collar – adj. of or related to office workers

blue-collar – adj. of or related to people who work in a factory

aspect – n. the way something appears; a part of something

decline – n. a process of becoming worse or weaken in condition

graduate – n. someone who completed a study program at a school, college or university

metropolitan – adj. of or relating to a large city as well as nearby cities and towns