NO.PZ2020011303000179
问题如下：
How is a flattening of the term structure defined?
解释：
A flattening of the yield curve occurs when long-maturity rates move down by more than short-maturity rates or when long-maturity rates move up by less than short-maturity rates.
题目问：flat的利率曲线是怎么定义的？
当长期利率下降幅度大于短期利率或长期利率上升幅度小于短期利率时，收益率曲线趋于平缓。
flatting是什么意思呢？？？？？
