The difference between diamond cut diamond and parity.

Diamond cut diamond met his opponent in chess. Metaphor means that both sides are equally capable. In Romance of the Three Kingdoms, Zhang Fei and Ma Chao diamond cut diamond fought for 300 rounds, regardless of the outcome.

This is a close game. The two sides of the war are evenly matched. The metaphor is that the two sides are equal in strength. Flag and drum: the flag and drum used to give orders in ancient battles. The two sides are evenly matched and have strong strength.

Discrimination is a figurative idiom; The strength of the two sides is equal, regardless of the meaning of high and low; Often used as predicate, object and attribute.

"diamond cut diamond" emphasizes the equivalence of skills, skills and abilities, that is, the master meets the master. "Equal" emphasizes the equivalence of strength and momentum; Can be used for concrete things, but also for abstract things.