前缀contra-原是个拉丁介词，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，有时与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。这里， 我们主要介绍它与词根结合的例子。

contraband [ contra- = against 对抗;band = ban 禁令=> “against the ban 违抗禁令的”→] I a. against the law; prohibited 非法的，违禁的 / The sale of stolen goods is contraband.出卖赃物是非法的。II n . smuggled goods 走私货 / Customs officials went through each bag for contraband.海关官员逐包检查以防走私货。

contrabandist n. 违禁品买卖者；走私者

contradict [ contra- = against 反对；diet = to speak 说=> “to speak against 以言相对抗”→] vt. ① say the opposite of 反驳 / It is rude to contradict a guest. 跟客人顶嘴是很不礼貌的。② deny 否认 / He contradicted the rumour. 他否认了那个摇言。③ be contrary to 与…矛盾 / Your story and his story contradict each other.你的说法与他的互相矛盾。

contradiction n. 矛盾；反驳；否认 

contradictory a. 矛盾的；爱反驳别人的

contrast [contra- = against 相对；st = to stand 站立 =>“to stand against 相对而立”→] vt. set (two things) side by side to show their difference 使对比，使对照 / The teacher contrasted birds and fishes.老师将鸟类跟鱼类作了比较。