Duality is a rhetorical way to express two opposite or similar meanings with a pair of phrases or sentences with the same number of words, the same structure and symmetrical meaning. That is, two sentences or phrases with similar or opposite meanings are symmetrically arranged together.
According to different meanings, duality can be divided into three types: positive pair, negative pair, series pair/flow pair;
1. Right: Two angles and two sides of things explain the same thing, which are complementary in content. The dual meaning of the previous sentence and the next sentence is similar, similar, complementary or contrasting.
2. Objection: The antithesis is called objection.
3. Double pair: also called even pair and running pair. There is a relationship of coherence, cause and effect, condition and turning point in the meaning of the first and second sentences. This kind of antithesis sentence is called a string pair.
Formally, it can be divided into two types:
1. Strict duality: the upper and lower sentences are required to have the same number of words, the same structure, relative parts of speech, and parallel, and words cannot be used repeatedly.
2. Generalized duality: As long as some of the five requirements of strict duality are met, it is not so strict.
3. There are two linguistic units in the dual, with the same number of words.
If you are slow, you can't be energetic. If you are impetuous, you can't control your sex.
The same number of words, the same structure and the same part of speech. Belongs to positive pair, generalized duality.