tree bark

基本解释

Recoiling in pain, I’d scrape my back or arms on the scaly tree bark.
碰疼時我本能後退，結果又被粗糙的樹皮擦傷背或胳膊。
In the thick forests of central and west Africa, troops find plentiful food for their vegetarian diet. They eat roots, shoots, fruit, wild celery, and tree bark and pulp.
部落一般在中部和西部非洲的密林這些植被豐富的地方，找尋適郃自己的食物：他們喫植物的根，竹筍，水果，野生芹菜，樹皮和果肉。
The workers survived underground by subsisting on sawdust, tree bark and turbid water, rescuer Chen Yongsheng told reporters.
救護隊員陳永生告訴記者，被睏人員在井下靠喫木屑，樹皮，喝涼水來維生。

These include sassafras,vanilla, wintergreen, cherry-tree bark, licorice root, black cherry and cane sugar.
Small pieces of tree bark or cut up leaves can be used.

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
The main culprit in the cinnamon powder is actually derived from tree bark and contains cellulose, an undigestible fiber capable of producing a strong inflammatory response in lung tissue, leading to long term wheezing and a chronic cough, potentially placing patients at further risk for bouts of pneumonitis or even aspiration pneumonia.
FORBES: An ER Doctor's Perspective on "The Cinnamon Challenge": Don't Even Think of Doing It