| 单词 | rasp fern |
| 释义 | rasp fern (extremely rare) n WORD FAMILY rasp fern n any fern of the genus Doodia having pinnate fronds with sharply dentate pinnae Syn|Hyper doodia fern any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores |
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