unprecedented

释义

a. 空前的\n[经] 空前的, 无前例的 unprecedented scale 史无前例的规模

例句

He took the unprecedented step of stating that the rumours were false.

他史无前例地声明那些谣言实属子虚乌有。

Crime has increased on an unprecedented scale.

犯罪率增幅之大前所未有。