- (formal)
the opposite of something 对立面；对应的事物 - (specialist)
the side of a coin or medal that has the head or main design on it （硬币或奖章的）正面
Word Originmid 17th cent. (in the sense ‘turned towards the observer’): from Latin obversus, past participle of obvertere ‘turn towards’, from ob- ‘towards’ + vertere ‘to turn’.