| 单词 | manna lichen |
| 释义 | manna lichen (extremely rare) n WORD FAMILY manna lichen n any of several Old World partially crustaceous or shrubby lecanoras that roll up and are blown about over African and Arabian deserts and used as food by people and animals Hyper lecanora any lichen of the genus Lecanora; some used in dyeing; some used for food |
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