As the caterpillar bites into a vein,a kind of latex swells out engulfing it.毛蟲只要咬破葉脈葉子就會流出一種膠乳包住毛蟲

bite into咬入；腐蝕

The little girl's tooth came out when she bit into the apple.

這小女孩在咬蘋果時，她的牙掉了。

This piece of meat is very tough, and no one has been able to bite into it.

這塊肉很硬，誰也咬不動。

the caterpillar drains the leaf of latex and cuts off its supply.讓葉片的膠乳流干并阻斷其供應

cut off切斷

He cut off a bunch of grapes to entertain us.

他剪下一串葡萄招待我們。

A storm that cut off power to the whole region.

切斷了整個地區電力供應的暴風雨

the caterpillar eats in safety before preparing to pupate into a butterfly.毛蟲可以放心大嚼，然后成蛹化蝶

prepare to準備

We are not prepare to consign the goods.

我們不準備寄售此貨。

Are you prepared to submit to my decision?

他準備對我的決定讓步嗎？