一個月爬行一英里
Have you seen the Disney animated film Zootopia?
你看過迪士尼動畫電影「動物方程式」嗎？
animated(adj.)活躍的、卡通片的，animated film動畫電影
If you have, Flash the sloth must have made an impression on you.
如果你有，那麼樹懶快俠一定給你留下深刻的印象。
impression(n.)印象，make an impression on sb.給某人留下印象must have+過去分詞
Sloths are the slowest mammals on Earth, and you’ll be surprised to know just how slow they are.
樹懶是地球上行動最慢的哺乳動物，你會驚訝牠們有多慢。
mammal(n.)哺乳動物surprised(adj.)感到驚訝的
It can take a sloth up to an entire month to travel a single mile on the ground.
樹懶最多可以花整整一個月的時間，才能在地上爬行一英里。
up to至多entire(adj.)整個的single(adj.)單一的、單個的
To avoid being hunted by enemies, sloths spend most of their lives in the trees of the rain forests of Central and South America, where they are from.
為了避免被敵人獵殺，樹懶大部分的時間都待在中南美洲熱帶雨林的樹上，那是牠們的故鄉。
avoid(v.)避免hunt(v.)獵食enemy(n.)敵人
Because their diet of leaves and bark doesn’t provide them with much nutrition, they need to save as much energy as they can.
因為牠們吃的樹葉和樹皮沒有給牠們提供太多營養，牠們需要盡可能地儲存能量。
bark(n.)樹皮provide(v.)提供nutrition(n.)營養save(v.)儲存energy(n.)能量、活力
One way they manage to save energy is by keeping their food in their bodies for as long as possible.
牠們設法儲存能量的一種方法是將食物留存在體內越久越好。
manage(v.)設法做到as…as possible盡量⋯
Sloths have big stomachs that can hold a large amount of food.
樹懶的胃很大，可以容納大量的食物。
hold(v.)容納amount(n.)數量
A sloth can spend 30 days to digest a single leaf. It’s unbelievable, isn’t it?
樹懶可以花30天的時間消化一片葉子，太難以置信了，不是嗎？
digest(v.)消化unbelievable(adj.)難以置信的
Their stomachs work so slowly that they only need to come down from the trees once a week for a bathroom break.
牠們的胃運作得很慢，以致於牠們只需要一週從樹上下來上廁所一次。
so…that…太⋯以致於⋯a bathroom break上廁所
So, sloths are indeed slow, but it’s not because they are lazy.
所以，樹懶的確動得很慢，但不是因為牠們懶惰。
They are just really good at saving their energy.
牠們只是真的很擅長節省能量。
good at sth.擅長某事