the basic or most important details of an issue or a situation 基本事实；重要细节
Time ran out before we could get down to the real nitty-gritty.
我们还没来得及探讨真正的重要细节，时间就过去了。
Let’s get down to the nitty-gritty and work out the costs.
我们来谈谈实质性问题，把成本计算出来吧。
the basic or most important details of an issue or a situation 基本事实；重要细节
Time ran out before we could get down to the real nitty-gritty.
我们还没来得及探讨真正的重要细节，时间就过去了。
Let’s get down to the nitty-gritty and work out the costs.
我们来谈谈实质性问题，把成本计算出来吧。