darkening is darken's Present Participle

darken

US [ˈdɑrkən]
UK [ˈdɑː(r)kən]
  • v.使暗;弄模糊;使愁闷;弄污
  • Web暗化;灯火管制;变黑
Simple Present:darkens  Present Participle:darkening  Past Tense:darkened  
v.
1.
使暗,遮暗
2.
弄模糊
3.
使愁闷
4.
弄污
5.
弄瞎
6.
变黑暗,阴
7.
变瞎
1.
使暗,遮暗
2.
弄模糊
3.
使愁闷
4.
弄污
5.
弄瞎
6.
变黑暗,阴
7.
变瞎