map lichens

• 地图地衣

map lichens的用法和样例：

例句

1. Reproduction in lichens is not well understood.
   地衣繁殖方式还不清楚。
2. A purplish- red dye derived from certain lichens.
   地衣赤染料萃一种从某些地衣中制取的紫红色染料。