Enantiosemy refers to a word simultaneously having two opposite meanings,and it can be divided into the Identity of Positive and Negative,the identity of Commendatory and Derogatory and the Identity of Doing and Done.

Two factors account for its occurrence:One is the extension of words meaning,which is examplified by verbs of trade extending wholly towards their opposition;the other is the variation of grammar function,hence,the fixation of verb s active meaning and passive meaning as a very important factor causing the identity of doing and done.

It derives from certain speech circumstance or casually affected mood of the speaker and is usually used in specific linguistic context,in rhetoric,flexible applying of a word or vesting a verb with both exertive and commissive meaning,sti.

Choosing His Best Copper is appeared frequently in the bronzes inscriptions of Chu state in the middle and late phase of the Spring and Autumn Period, it is a sort of special idiom, which spread to the states associated with Chu state and Wu, Yue states later.