but the caterpillar has not yet got enough reserves to transform itself into a moth.毛蟲卻還沒有足夠的儲備來轉化成蛾

transform into:轉變成

A tadpole is transformed into a frog.

蝌蚪變成青蛙。

So, it settles down beneath a rock.所以只好在一塊巖石下面躲了起來

settle down:安下心來, 定居

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

他已經到了應該安頓下來的年齡了。

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

他不過是個流浪漢－－哪兒也呆不住。

but the cold penetrates deep into the ground.但嚴寒仍蔓延至地下

deep into:深入

The explorers went deep into the jungle.

探險家們進入叢林深處。

He went on studying deep into the night.

他繼續學習至深夜。