n.

1. 后果，余波；事件结束后的一段时期[S1][（+of）]
   Many people were homeless in the aftermath of the earthquake.

   地震之后，许多人无家可归。

2. 再生草[C]

n.

1. the consequences of a significant and typically unpleasant event.
2. Farming  new grass growing after mowing or harvest.