hill是指那种“小山丘，小丘陵”，a hill of beans含义不是指“满山的豆子”，其正确的含义是少量；小事；毫无价值；一文不值。

【例句】
For all the congressman's posturing about overhauling the tax system, his plan to do so is just a hill of beans.
虽然国会议员摆出了要彻底改革税制的姿态，但他的计划毫无价值。

But to tell the truth, it was not worth a hill of beans.
但说实话，我认为那本书一钱不值。