Definition
to entirely eliminate something, typically over a period of time
完全消滅;徹底殺光
The community is working hard to reduce poverty and ultimately wants to kill it off.
社區正在努力減少貧困,最終希望徹底消滅它。
The pathogen has been killed off completely over the past few years.
過去幾年,這種病原體已被完全消滅。
The new legislation aims to kill off the sources of environmental pollution.
新法規旨在徹底消滅環境污染的源頭。