2. Idiom usage: subject-predicate type; Used as attribute and object; With praise; The description of words is extremely valuable and the words are wonderful.
3, antonym: worthless.
4. Synonyms: the word is a pearl, a floor, a flowery pen, a thousand words, a pearl and a city.
5. Idiom source: "Historical Records and Biography of Lv Buwei": "The gate of Bu Xianyang hangs over thousands of dollars, and those who can add or subtract words will be given thousands of dollars."