nigrify

1. In managing nigrify dragon river to save rice to be developed in the market dispersedly, increased a lot of inside bad news.
   分散经营使黑龙江省大米在市场开拓中增加了许多内耗。

verb

1. make or become black
   1. The smoke blackened the ceiling
   2. The ceiling blackened

   Synonym:    blackenmelanizemelaniseblack