frobn.开关旋钮; 调着玩froadv.来回（现仅用于to and fro短语中）frozen platelet冰冻血小板frozen and thaw冻融Fronh's reagent火电站frozen to deathv.冻死frozen quantity冻胀量frozen articles冻结性条款frozen egg pulp冰全蛋frozen ox liver冻牛肝frozen attitude冻僵姿势frozen tangyuan速冻汤圆