two-part allegorical saying (one-liners): humorous in form. Adopt a two-part structure of mystery and answer.
common sayings (common sayings, common sayings): including proverbs and two-part allegorical sayings. Idioms: short structure, fixed usage and multi-use metaphor.
Idioms: Generally speaking, most of them are written, which are in the form of written language and have a four-character structure by convention.
old saying: it's a common saying handed down by our predecessors. (including proverbs and two-part allegorical sayings)
Famous sayings: Generally, there are sources, words and quotations said by celebrities.