At a certain age, it's not viable for men to take a backward step into unskilled work.

到了一定的年龄，就不可能再退回去干不需要技能的工作。

柯林斯例句

With no education, you will get only unskilled work.

未受过教育, 你只能做无需技能的简单工作.

辞典例句