bark extract

例句：

1. 1.The bark extract from this tree is highly valued for its anti-inflammatory properties.
   这种树的树皮提取物因其抗炎特性而备受推崇。
2. 2. The natural extracts from the bark of this plant have been shown to have strong antioxidant effects.
   这种植物树皮的自然提取物已被证明具有强大的抗氧化作用。
3. 3. The bark extract has been used traditionally in herbal medicine to treat a variety of ailments.
   传统上，这种树皮提取物在草药医学中被用于治疗各种疾病。