That's whythey sometimes fill a cavity in its early stages, before it starts to hurt.

所以说，做这个治疗并不容易—当然，医生们也是很清楚的。这也是为什么医生会在蛀牙初期的时候为病人补牙，防止酸性物质的继续腐蚀。

It likes to hang out in the little ponds that form in cavities within bromeliad plants.

它喜欢待在凤梨科植物中小洞注水形成的小水池里。

But, it's also important that we remember that we shouldn't be getting the cavity in the first place.

不过，我们也必须牢记，不应该将修复蛀洞放在首位。

The upswing in candy sales had led to a rise in cavities which led to a rise in toothpaste sales.

糖果卖得好，结果蛀牙的人就变多了，牙膏的销售量也随之提升。

So, he has a cavity in one of his molars.

所以，他的一颗臼齿有一个洞。

More than a quarter of the dentists reported an increase in cavities and gum disease - quite likely a result of changes in people's diets and hygiene.

超过四分之一的牙医报告称，蛀牙和牙龈疾病增加，这很可能因人们饮食和卫生习惯的改变而引起。