下面两句话没看太懂，麻烦大家翻译一下。

  A cut off of 200 or greater is suggested as an indication of adequate model fit for the critical N statistic.

对于关键样本指数统计量而言，样本数达到或者超过200是适合模型拟合的一个指标

  A nested model is nested within another model where the first set of freely estimated parameters is a subset of those estimated in another model.

当一套自由估计的参数是那些在另一个模型中被估计的一个子集时，第一个嵌套模型被嵌套在另一个模型中。