There is a passage in the TV series "Ji Xiaolan with iron teeth and copper teeth", in which Ji Xiaolan and _ accompany Gan Long to travel and eat in a restaurant, and _ is the person who knows how to vote for Gan Long best. When they see the pork belly on the table, they will make a couplet called "Three Jin of pork belly".
Couplets, also known as couplets, originated in Fu Tao and are a kind of dual literature. It can be roughly divided into poetry couplet and prose couplet, and the size of parts of speech is strictly distinguished. It can be seen that it is a fundamental mistake to say that "couplets originate from regular poems". The antithesis of traditional couplets is more neat than the so-called poetry couplets. With the rise of poetry in the Tang Dynasty, prose couplets were excluded. Prose couplets are generally eclectic, straightforward, do not avoid repetition, and do not overemphasize couplets with equivalent parts of speech without losing opposition.