Okay, so this isn't a bicycle, it's a unicycle - and the concept is totally contrary to the essence of a bicycle, which requires some kind of effort on behalf of the rider in order to move.

好吧，这不是双轮自行车，这是独轮车——它的设计理念也和那种需要你先动它再动的普通自行车理念向左。

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However, contrary to popular belief, we also found that excessive levels of alcohol enhanced memories of highly emotional stimuli, meaning the concept of 'drinking to forget' is unlikely to be true.

然而，我们还发现，与普遍观点相反，过度饮酒能够强化人对高强度情感刺激的记忆，也就是说‘借酒消愁’并不能奏效。

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Friendship can never become a trade; on the contrary, it needs the most thoroughly of no interest concept.

友谊永远不能成为一种交易；相反，它需求最彻底的无利害观念。

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Homework seemed a foreign concept, at least until the contrary behaviour of the American students, who actually turned in the completed assignments, proved an example the Europeans elected to emulate.

ECONOMIST: At your service

His failure to admit his guilt had been used as grounds for his pre-trial detention which "ran contrary to the elements which made up the concept of a fair trial", the ECHR said.

BBC: Ukraine Lutsenko arrest 'violated rights', says court

They are utterly contrary to a patient's right to know and to the concept of learning from our errors.

WSJ: How to Stop Hospitals from Killing Us