同根常考词汇：需掌握
◆counteract[，kaunt‘rkt]v.对抗；抵消
举例：The doctor gave him some medicine to counteract the effect of the poison.
医生给他些药解毒。
同形：counter[’kaunt]n.柜台：a.相反的：ad.相反地
discount[‘diskaunt]n.折扣；打折扣卖
encounter[in’kaunt]v.遭遇，遇到，相遇：n.遭遇
◆counterbalance[，kaunt‘blns]n.平衡：v.使平衡
举例：The girl’s earnest effort counterbalanced her slowness at learning.
这女孩的刻苦努力弥补了她在学习上的迟钝。
同形：balance[‘blns]n.天平，平衡，差额：v.使平衡，使均衡，使相等，权衡
同根普通词汇：要了解
◆countermand[，kaunt’mɑnd]v.撤销
举例：The commander countermanded the reinforcements to the battlefield.
他撤回了对参谋的命令。