“地衣”怎么读

“地衣”的英语可以翻译为：[植] lichen （低等植物， 菌和藻的共生体） ...

那石级长满了地衣.The stone stairway was covered with lichen.墓碑长满了地衣,已在崩落.The tombstone was lichenous and crumbling.在南极洲所发现的植物只有藻类 、 苔藓和地衣.The only plants to be found in Antarctica are algae, mosses, and lichens....