費力(或令人討厭)的事;難熬(或令人不快)的日子
a devil of a job / time
a very difficult or unpleasant job or time
I've had a devil of a job finding you.我費了九牛二虎之力才找到你。
釋義來自《牛津高階英漢雙解詞典》第 9 版