and percolated deep into the ground.雨水下落滲入地下

deep into深入

Some plants push their roots deep into the soil.

一些植物的根深深長入土中。

The explorers went deep into the jungle.

探險家們進入叢林深處。

living relics from this wetter time have a chance to cling on.就是那些幸存的古老生物的依附之地

cling on依附，執著

He had one last hope to cling on to.

他還抱著最后的一線希望。

Then they cling on even tighter.

然后,他們就更加執著了。

Hatchlings stick close to their mother.小魚們都緊貼在母親身邊

stick to粘附在…上；緊跟，緊隨

You'd better stick to your last.

你最好還是做自己分內的事。

We must stick to our task till it is finished.

我們必須繼續工作，直至做好為止。