Pristine — in its original condition, not damaged.

原始状态的——在其原始状态，没有被破坏。

" To restore" (restore) means to bring something back to its original condition.

“恢复”（restore）的意思是使某物恢复到原来的状态。

Thus, in negative feedback, when the original condition has been repaired, or negated, corrective actions decrease or discontinue.

因此，在负反馈中，当原始状态被修复或已无效时，纠正行为便减少或停止。

We've had deforestation - a loss of forests. Pristine - in its original condition, not damaged. Pledge - a formal or serious promise.

我们经历了森林砍伐——森林消失。 原始 - 处于原始状态，未损坏。 承诺——正式或严肃的承诺。

These relics decay or become damaged over the millennia and ahead of its opening this year, the Grand Egyptian Museum hired a number of experts to bring artifacts back to nearly original condition.

这些出土文物在千年之中或者说今年出土之前已遭腐蚀和损坏了，大埃及博物馆聘请了许多专家，他们使文物几乎恢复了其原始状态。

What's special about places like the Amazon is that they are primary forests which exist in their original condition with some species of trees dating back thousands of years.

像亚马逊这样的地方的特别之处在于， 它们是原始森林， 以原始状态存在， 其中一些树种可以追溯到几千年前。