but the caterpillar has not yet got enough reserves to transform itself into a moth.毛虫却还没有足够的储备来转化成蛾

transform into:转变成

A tadpole is transformed into a frog.

蝌蚪变成青蛙。

So, it settles down beneath a rock.所以只好在一块岩石下面躲了起来

settle down:安下心来, 定居

He's of an age when he ought to settle down.

他已经到了应该安顿下来的年龄了。

He's just a drifter he can't settle down anywhere.

他不过是个流浪汉－－哪儿也呆不住。

but the cold penetrates deep into the ground.但严寒仍蔓延至地下

deep into:深入

The explorers went deep into the jungle.

探险家们进入丛林深处。

He went on studying deep into the night.

他继续学习至深夜。