Recoiling in pain, I'd scrape my back or arms on the scaly tree bark.

我疼得直往后缩，后背或胳膊被粗糙的树皮刮伤。

youdao

I know people make utensils out of wood, but utensils out of tree bark?

我知道人们用木头做餐具，但是用树皮做餐具？

youdao

In the year 105, he made it from tree bark, bamboo, cloth rags, and fishing nets.

在公元105年，他用树皮、竹子、破布和渔网制成了它。

youdao

These include sassafras,vanilla, wintergreen, cherry-tree bark, licorice root, black cherry and cane sugar.

VOA: special.2011.08.01

Small pieces of tree bark or cut up leaves can be used.

VOA: special.2009.06.30

Girls with cheeks smeared with thanaka (sun block made from ground tree bark) balance two to a bicycle.

BBC: A new dawn in Burma

Two years later they're found living off tree bark, wearing animal skins and making nutritional smoothies out of locally gathered herbs and their own urine.

FORBES: Magazine Article

An abandoned horse that looked like a "walking skeleton" and was forced to eat tree bark to survive has been rescued from a field in Hertfordshire.

BBC: Maggie the horse