ditchwater

1.Best-seller or not, the book sounds as dull as ditchwater to me.

不管这是不是畅销，反正我读起来枯燥透顶。

2.The book I've been reading is as dull as ditchwater, it has no story or any interest at all.

我读的这得很, 根没有情, 意思也没有。