Good teeth and sharp teeth
It's a Chinese idiom, Pinyin is n é ngy á L ì ch ǐ, which means to be eloquent and good at words. It comes from Xiao Xiang Yu by Yang Xianzhi in Yuan Dynasty.
Idiom explanation
He is good at speaking.
The origin of Idioms
In Yuan Dynasty, Yang Xianzhi's the rain of Xiaoxiang, the second discount: "look at your sharp teeth, you say I'm guilty."
Good teeth and sharp teeth
be passed on and become a tradition - xiāng yán chéng sú
To do something with one's sleeve - luò xiù xuān quán
fight a quick battle to force a quick decision - sù zhàn sù jué