seal off 释义 封闭:紧紧关闭。 例句 1·The city should seal off those tunnels. 这个城市应该封闭那些隧道。 2·Freezing rain can seal off your car and lock you inside. 冻雨会封住你的车,把你锁在车里。 3·But we shouldn't fall and seal off ourselves. 但是我们应该堕落,更不能自我封闭。 同义词 封闭;把…封锁起来 block outobturate