a tidy sum的用法和樣例：
例句
- It was a bit of a shock to be declared redundant, but since I had a tidy sum of money saved I was not unduly anxious about finding another job immediately.
被宣布解雇頗令人震驚，但是由于我存了相當大的一筆錢(qián)，我并不為立即另找工作而憂(yōu)心忡忡。 - She's put aside a tidy sum for her retirement.
她存了一筆相當可觀(guān)的錢(qián)以備退休之用。
