the age of a draught animal as shown by its teeth
the condition of an old person's teeth

牙的英語翻譯：

cuspid; tooth; tooth-like thing; tusk
【醫(yī)】 dens; dent-; dental ivory; dentes; denti-; dento-; odont-; odonto-
teeth; tooth

口的英語翻譯：

cut; gob; jaws; mouth; opening; ostium; scoop; stoma
【醫(yī)】 aditus; apertura; aperturae; aperture; bouche; introitus; meatus; mouth
opening; ora; orifice; orificium; oro-; os1; ostia; ostium; portal
stoma; stomata; stomato-; trema