v.包以外殼（結(jié)殼）；裝飾外層
Salt from the sea had encrusted on the dry sand. 海水中的鹽分在乾燥的沙子上結(jié)成硬皮。
Green weed and grey barnacles encrust every part under the sea. 水下的部分則覆滿了綠色的海藻和灰色的藤壺。
