每逢春节，无论城市还是农村，家家户户都要精选一副大红春联贴于门上，为春节增加喜庆气氛。

In Chinese poetry, a couplet is a pair of lines of poetry which adhere to certain rules (see below). Outside of poems, they are usually seen on the sides of doors leading to people's homes or as hanging scrolls in an interior. Although often called antithetical couplet, they can better be described as a written form of counterpoint. The two lines have a one-to-one correspondence in their metrical length, and each pair of characters must have certain corresponding properties. A couplet is ideally profound yet concise, using one character per word in the style of Classical Chinese. A special, widely-seen type of couplet is the spring couplet used as a New Year's decoration that expresses happy and hopeful thoughts for the coming year.