The shores were gradually worn away and eventually collapsed.

岛岸逐渐断裂 崩塌。

Very slowly, wind, water and ice wore away the rock.

风、水和冰缓缓地侵蚀着岩石。

It takes 10,000 years to wear away an inch of granite.

按一英尺花岗岩耐磨一万年计算。

In a few more million years, the Badlands will be worn away, forever.

再过几百万年，荒地将永远消失。

If your enamel is worn away, your dentin and its tubules can be exposed.

如果你的牙釉质被磨掉了，你的牙本质和它的小管就会暴露出来。

The outer layers of the volcano were worn away, until the hard core stood completely exposed.

火山的外层被磨损，直到硬核完全暴露在外。

Cavities are actually caused by acidic foods and drinks that wear away the enamel on your teeth.

蛀牙实际上是由酸性食物和饮料导致的，酸性物质会腐蚀牙齿上的釉质。

The rivers, too, which run over the land wear away their rocky banks in the same way.

河流也是这样, 当它们流过时都会将周围的河畔冲刷成这样的微粒。

These early walls that were made of packed earth and wood wore away in the rain and wind.

早期用泥土和木头做的墙经过风吹雨打后都有所磨损。

But if you turn it and wear it with the heart away from you, it means you're available.

但如果你转过来戴, 心背离你, 表示你还单身.