对仗 (duìzhàng) is a literary technique commonly used in Chinese poetry and prose. It involves pairing words or phrases in a balanced and symmetrical manner, often with similar structures and meanings. This technique enhances the rhythm and aesthetic quality of the text, making it more pleasing to read and hear. In traditional Chinese literature, 对仗 is often found in couplets, where each line mirrors the other in terms of tone, length, and grammatical structure. This practice is especially prominent in works by famous poets like 李白 and 杜甫, showcasing the beauty and complexity of the Chinese language.