deepen的形容词是哪个

　　deepen例句分享

　　There were plans to deepen a stretch of the river.

　　曾经有过加深一段河道的计划。

　　The water deepened gradually.

　　水渐渐变深了。

　　The gloom deepened as the election results came in.

　　选举结果陆续传来，失败的情绪越来越重。