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Technology has advanced , the requirement for backbreaking toil has diminished .

随着技术的进步，繁重的体力劳动需要减少了。

And no one should want to sugar coat the tougher side of life here either , including long shifts at backbreaking jobs for low pay that is familiar to american workers .

但并没人想体验那种包上糖衣的艰难的生活，包括像美国工人一样为了很低的薪水而长时间地干一些累人的工作。

When the persuading and the planning for the western railroads had been completed , the task remained : the dangerous , sweaty , backbreaking , brawling business of actually building the lines .

路的说服和规划工作终于完成后，真正艰难的任务还没有开始；即危险，吃力，需要伤筋动骨和吵吵嚷嚷的建造这些铁路的实际工作。

Looks easy at first but it 's probably the most backbreaking jobs on site .

看起来很简单，但其实可能是施工现场最繁重的工作了。

Buffett was horrified that he performed such backbreaking work only to earn pennies an hour .

巴菲特很惊诧，他们努力地去做如此艰难繁重的工作，却仅仅获得每小时几个便士。