cavities 是 cavity 的复数cavityKK [ˋkævəti] /ˈkævəti/发音名词1蛀牙、龋齿The dentist found two cavities and filled them the same day.牙医发现两颗蛀牙,当天就补好了。2洞、凹洞、空穴Water had collected in a small cavity in the rock.岩石上的小凹洞里积了一些水。3腔、体腔医学The surgeon carefully examined the abdominal cavity.外科医师仔细检查了腹腔。用这个字练口说→