Pairing is a rhetorical method that uses a pair of phrases or sentences with the same number of words, the same structure, and symmetrical meaning to express two corresponding or similar or same meanings.
Counterpart usually refers to a rhetorical method consisting of two phrases or sentences that are opposite to each other in a sentence, have the same number of words, have similar syntax, are relatively oblique, and have related meanings. In terms of antithesis, the two parts before and after are closely related, condensed and concentrated, and have strong generalization power; in terms of form, the two parts before and after are neat and even, the syllables are harmonious, and have a sense of commandment. Strict antithesis also pays attention to level and tones and makes full use of Chinese tones.
Extended information:
The classification of duality is:
1. Positive duality
The upper and lower lines express the same kind or similar meaning , are complementary to each other. For example: There are close friends in the sea, and there are neighbors in the world. "Sending Du Shaofu to Shuzhou" As long as friends know each other well, they are like close neighbors even if they are separated at the end of the world. (The meaning of the upper and lower couplets is closely related. "Hai Nei" means within the four seas. In ancient times, it refers to the whole of China. "Bi Nei" means close neighbors.)
2. Opposing pairs
The upper and lower couplets The meaning of expression is opposite or relative, mostly referring to two aspects of the same thing. For example: If you persevere, the rotten wood will not be broken; if you persevere, the metal and stone can be carved. "Encouragement to Learning" Use a knife to carve something, carve it for a while and then put it down, even if it is rotten wood, you can still carve it; if you keep carving it with a knife, you can carve it through even hard gold and stone. ("Perseverance" and "Perseverance" are opposites.)
3. String duality (flowing pair)
That is, "stringing together to form a pair", just like flowing water flowing smoothly. Down, so it is also called the flowing water pair. Its starting sentences and couplets are based on the development process of things, so the meaning is closely coherent. For example: from Ba Gorge through Wu Gorge, then go down to Xiangyang towards Luoyang. "When I heard that the government troops were taking over Henan and Hebei," I immediately passed through Wu Gorge from Ba Gorge, then went down to Xiangyang, and then headed for Luoyang.
Baidu Encyclopedia—Duality