| 单词 | quill-covert |
| 释义 | > as lemmasquill-covert ΚΠ 1827 Edinb. New Philos. Jrnl. 3 262 The quills and large tail-feathers, as well as the first row of superior and inferior quill coverts, are in most cases perfectly simple. 1890 Cent. Dict. Quill-coverts, feathers immediately covering the bases of the large feathers of the wings or tail of a bird. < as lemmas |
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