The obverse of love is hate.

　　愛的反面是恨。

　　The obverse of rising unemployment is continued gains in productivity.

　　失業(yè)率上升，相對應(yīng)的是生產(chǎn)率進一步提高。

　　Do you really mean that or are you just being deliberately perverse?

　　你是真要那樣，還是故意作對？

　　She finds a perverse pleasure in upsetting her parents.

　　她讓父母擔(dān)驚受怕，從中取得任性的快樂。

　　It would be perverse to stop this healthy trend

　　阻止這種健康發(fā)展的趨勢是沒有道理的。