profit margins decline

• 利润率下降

profit margins decline的用法和样例：

例句

1. A sluggish economy and increased competition brought about by economic reforms are squeezing profit margins.
   市场需求不旺，经济改革加剧了行业竞争，导致公司利润率下降。
2. Higher crude oil and natural gas realizations and improved marketing margins were partly offset by lower chemical margins.
   原油与天然气价格上涨以及销售利润率提高部分抵消了化学产品利润率下降的影响。