What that is actually reflecting are the ways that the teeth are replaced.

那实际上反映了的这些牙齿的更替方式。

They can replace their teeth many times throughout their lifespan, as well.

也就是说只要在它的生命期限内，它可以多次更换牙齿。

Of course, in reality, parents sneak into the room and replace the tooth with the cash.

当然，事实情况是，父母会偷偷摸摸进入房间，用钱来换取牙齿。

One implant with a crown can replace a single missing tooth, eliminating the need to prepare adjacent natural teeth.

缺失牙种了一个种植体，就在上面做单冠，可以取代不做种植的情况下直接做桥，这样不必将2个邻牙备牙。

Because their teeth would wear down much quicker compared to a carnivore, they would have to replace their teeth much more often.

因为与食肉动物相比，它们的牙齿磨损得更快，所以它们必须更频繁地更换牙齿。

We know that, in some extreme cases, sharks in captivity in aquariums will replace each tooth in each position on the jaw every maybe 8 to 10 days.

我们知道，在一些极端情况下，在水族馆里面豢养的鲨鱼大概每八到十天就会换掉口中各处的所有牙齿。

Now, some experts think that replacing teeth with beak tissue may have had something to do with making it easier to eat certain foods, like seeds.

现在，一些专家认为，用喙组织代替牙齿可能与吃某些食物（如种子）更容易有关。

We now know that dinosaurs, like Tyrannosaurus Rex, replaced each tooth once every one and a half to two years, regardless of whether or not it was worn or broken.

我们现在知道，像霸王龙这样的恐龙，每隔一年半到两年更换一次牙齿，不管它是否磨损或折断。