Sedimentary rocks like sandstones form when preexisting rocks break down into bits that pile up and stick together to form a new rock.

像砂岩这样的沉积岩是由先前存在的岩石分解成碎片堆积在一起形成新的岩石形成的。

But nobody has collected any new Moon rocks for more than 40 years.

但 40 多年来，没有人收集过任何新的月球岩石。

Or even re-melt and recrystallize to make new igneous rock.

甚至重新熔化并重结晶以制造 新的火成岩。

They've got this new rock climbing wall, we can spot each other.

有一面新的攀岩墙 我们可以互相侦查。

In fact, I just discovered this new rock band that you might have heard of already called the Beatles. Yeah. They're really good.

事实上，我刚刚发现了这个你可能听说过的新摇滚乐队， 叫做甲壳虫乐队。 是的。 他们真的很好。