To eradicate something means to get rid of it completely.
例句
They are already battling to eradicate illnesses such as malaria and tetanus...他們已經(jīng)在努力消滅瘧疾、破傷風(fēng)等疾病。If tedious tasks could be eradicated, the world would be a much better place.如果可以消滅那些單調(diào)乏味的工作，世界將會(huì)變得更加美好。
英英詞典釋義
Noun
1. the complete destruction of every trace of something