In all industries where the hours of labor are long, there you will find the least development of the power of invention. 在所有劳动时间长的工业中，人们会发现那里工人的发明创造力发挥得最差。
In contrast, he used more than one hundred pages to demonstrate the economic and social consequences of long hours of work by women. 相反，为说明妇女劳动时间长产生的经济和社会后果，他竟用了一百多页。
