counterionn.平衡离子countern.柜台；筹码；计数器；反驳adj.相反的adv.与…相反地v.反对；反击counter/timer定时／计数counter irritant抗剌激剂counterclockwise反时针方向(的)counterextension对抗牵引,对抗牵伸术countermand v.撤回;counterfeit note伪造的钞票,伪造纸币Countermea sures对策counter-action反诉counter gradient逆梯度counter-appeal抗诉