lichening ['laikin] [ lichening ] n.地衣, 青苔 例句与用法: The rock is full of lichen. 岩石上长满了青苔。 词形变化: 形容词: lichenous | 动词过去式: lichened | 动词过去分词: lichened | 动词现在分词: lichening | 动词第三人称单数: lichens |