外国人的第二职业人们通常以为国外的第二职业相当普遍，其实并非如此。美国的教授分正、副、助理三种。助理教授也可以带博士生，只是学校还没发给他终生聘书。因此，助理教授总是卖力工作，带课很多，力争早些晋升，出去兼职的极少；而正、副教授则相对超脱些，可能去搞... Second foreigners usually think that the second occupation abroad is quite common, but this is not the case. The professors in the United States are classified as positive, deputy and assistant. Assistant professors can also bring doctoral students, but the school has not given him life-long appointment. Therefore, assistant professors are always hard-working, with a lot of classes, and strive to promote earlier, very few go out part-time; and positive, associate professor is relatively detached, may engage in ...