tooth decay 蛀牙

decayed tooth 蛀牙

cavity 洞；凹处；腔；蛀牙

应用实例：

1.Tooth decay can eventually destroy your wisdom tooth.

蛀牙最终会毁了你的智齿。

2.I had a decayed tooth drawn by the dentist.

牙医给我拔出了一颗蛀牙。

3.If you don't take care of your teeth, you'll get cavities.

如果你不好好照顾你的牙齿，你就会有蛀牙。

出处：头条号 @坚小持微课