| 单词 | rock brake |
| 释义 | rock brake rock brake n.（名词）Any of several ferns of the genusCrytogramma that usually grow in rocky ground and have compound fronds and podlike fertile leaflets. 珠蕨属：任一种通常生长在岩地上的珠蕨属 蕨类植物，长有复叶和豆荚状能结果的小叶 |
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