We can also use tools like the US Bureau of Labor Statistics' Occupational Outlook Handbook, which is published every two years.
我们也可以使用一些工具,比如美国劳工统计局每两年出版一次的《职业展望手册》。
英语百科
Occupational Outlook Handbook
. The 2012–13 edition was released in November 2012 and the 2014–15 edition in March 2014.
Because it is a work by the United States federal government, the Handbook is not under copyright and is reproduced in various forms by other publishers, often with additional information or features.