汉：contra来源于拉丁语，意为"against,contrary,opposite"。contro,counter是它的变形。前缀contra-原是拉丁介词，意思为against 或opposite,它主要出现在直接引进英语的拉丁词中，是个只与拉丁词根缀合的原生词缀。但是与contra-缀合的词基恰好是英语中的拉丁借词，在这种情况下，也可以把它看作派生词缀。

英：word-forming element meaning "against, in opposition," from Latin adverb and preposition contra (see contra). The Latin word was used as a prefix in Late Latin. In French, it became contre- and passed into English as counter-. The Old English equivalent was wiðer (surviving in withers and widdershins), from wið "with, against." 1.contraband
n.smuggled goods,unlawful trade 违禁品，走私 *contra(=against),ban (=control,prohibition)
例句：Airport customs officers searched each passenger for contraband.机场海关人员为防止走私，对每位乘客都进行检查。

2.contraception
n.method of preventing org planning conception 避孕(法)
例句：The church still opposes any unnatural method of contraception.教会仍然反对任何不自然的避孕方法。

3.controvert
v.dispute about;deny,oppose争论；反驳，反对 （反对而转过身来）*contro(=contra=against),vert(=turn)
例句：I feel compelled to controvert this decision.我觉得必须要反对这项决定。

4.counterfeit
v.imitate coins,handwritings,etc.伪造 （违反去做）
n./adj.(someting)made or done in imitation of another thing in order to deceive 赝品；伪造，假冒的 *counter(=contra=against),feit(=to make)
例句：There are many counterfeit Nike and Reebok shoes on the market.市场上有很多假冒的耐克和锐步鞋。

5.counterpart
n.person or thing exactly like 极相似的人或物 *counter(=against),part(=part)
例句：Defense Minister Kim will meet with his cunterpart from Thailand tomorrow.国防部长金部长将于明日会见泰国的国防部长。