成双作对

Explanation: Paired a pair. 　　Source: Yuan Anonymous "Hundred Flowers Pavilion," the third off: "If there is Rouge of the North Kuang Fu, buy in pairs against eating. 　　Examples: Gathering of friends is there, why should the two couples go together? This calculation shows that you are ~ you? (Tao "lonely") Thesaurus:  gifted scholars and beautiful ladies, Belle swan, boy and girl attendants of fairies, female beauuty at home and male service to the state; perfect match with the man wise and his girl pretty; a perfect match between a man and girl, A pair of two good Antonym Group:  Only short irascible, No German gentleman of (the) four outs