含有树皮的

例句：

1. 1. The tree has a thick trunk and rough bark.
   这棵树有粗壮的树干和粗糙的树皮。
2. 2. The old oak tree had deep green bark that was smooth to the touch.
   那棵老橡树有着深绿色的树皮，摸起来很光滑。
3. 3. The bark of the tree is used in traditional medicine.
   这种树的树皮在传统医学中被使用。