bark
/bɑrk/
tough protective covering of the woody stems and roots of trees and other woody plants
中文释义:树皮
The rough bark of the oak tree provides habitat for insects.
橡树粗糙的树皮为昆虫提供了栖息地。
Some animals eat tree bark during winter when food is scarce.
有些动物在冬季食物匮乏时吃树皮。