He must have all the inside walls of the house scraped and the material that is scraped off dumped into an unclean place outside the town.

也要叫人刮房内的四围、所刮掉的灰泥、要倒在城外不洁净之处。

youdao

The FBI is seeking to develop an early-warning system based on material "scraped" from social networks.

BBC: FBI plans social network map alert mash-up application