cordon off片语动词KK [ˋkɔrdən ɔf] /ˈkɔɹdən ɔf/发音片语动词1封锁、隔离、围起来可拆开Police cordoned off the street after the explosion.爆炸发生后,警方封锁了整条街道。2划出、圈出They cordoned off a small area for the children to play in.他们圈出一小块地方给孩子们玩。用这个字练口说→