基本解释v.包以外壳（结壳）；装饰外层同根派生 英汉例句用作动词 (v.)Salt from the sea had encrusted on the dry sand.海水中的盐分在乾燥的沙子上结成硬皮。Green weed and grey barnacles encrust every part under the sea.水下的部分则覆满了绿色的海藻和灰色的藤壶。