The boss made his men work like a horse all day long and paid them little.

老板迫使工人整天苦干而付给他们的钱却很少。

In terms of forms of literature, the work is like a horse with a human head and it uses oxymoron in some parts;

就其体裁来看，它像一匹人头马，文中运用了不少矛盾修饰法；