Part 1 字首 表示{否定}的字首 contra- =against 反对
入门字
contrary （a. ）相反的
contra/ry
against/形容词字尾
进阶字
1. contradict (v.)反驳;造成矛盾
contra/dict
against/speak
Chinese' students seldom contradict their teachers.
中国学生鲜少反驳他们的老师。
2. controversial(a.)有争议性的
contro/vers / ial
against/turn/形容词字尾
Nuclear power is a highly controversial issue.
核能是个相尝具有争议性的议题。
3. counterfeit (a.)伪造的 (n.)伪钞 (v.)伪造
counter/feit
against / make
The will is invalid because the signature is counterfeit.
因为签名是伪造的，所以遗嘱无效。。