The obverse of love is hate.
爱的反面是恨。
The obverse of rising unemployment is continued gains in productivity.
失业率上升，相对应的是生产率进一步提高。
Do you really mean that or are you just being deliberately perverse?
你是真要那样，还是故意作对？
She finds a perverse pleasure in upsetting her parents.
她让父母担惊受怕，从中取得任性的快乐。
It would be perverse to stop this healthy trend
阻止这种健康发展的趋势是没有道理的。