你的右手是你左手的相对物.Your right hand is the counterpart of your left hand.克制是必要的相对物对反对风.Restraint a necessary counterpart to the winds of opposition.你的右耳朵是你左耳朵的相对物.Your right ear is the counterpart of your left ear....

“相对物”的英语可以翻译为：[医]relative ...