Volunteers quickly took action to help clean the streets in the aftermath of the typhoon.

aftermath 由 after（之后）和 math（古英语，意为"割草"）组成，原指"收割后留下的残茬"，现引申为"（灾难性事件后的）后果、余波"。这里指台风过后的混乱局面和遗留问题。