case off meaning in English

隔离开
套管封隔
套管隔开；下管入井
用套管隔离

During the buy , both our case off . icer and the seller were killed
交易进行当中，我的人和卖家都被杀死了
" given the defendant s attempts to evade arrest and then his strenuous attempts to contest his extradition from the uk it would have been all too easy for them the icac to have given up and to have written this case off
在宣读袁朗达的判词时，马永新法官称虽然被告多番潜逃及抗拒引渡回港受审，廉政公署却锲而不舍，经漫长调查而不放弃，应受赞扬。