牙齒 yáchǐ HSK7 tooth Origin Definitions Defs Strokes Stroke Words Sentences Sents 牙齿捉对儿厮打 yáchǐzhuōduìrsīdǎ teeth chattering to have one's teeth chatter or knock together due to extreme cold or intense fear牙齿矫正器 yáchǐjiǎozhèngqì orthodontic braces braces used for straightening teeth; orthodontic appliance for dental alignment