2, the idiom source: "Gu Liang Chuan Xi Gong Er Nian": "Jade is still right, horse teeth are lengthened."
3. Idiom usage: subject-predicate type; Become an object; Used for modesty.
4. Synonym: Horse teeth are too long and waste time.
5, antonym: successful career, old and strong, the second half of life is awesome.