| 单词 | secretary bird |
| 释义 | Word Frequency secretary birdnoun a large African long-legged diurnal bird of prey, Sagittarius serpentarius, having a crest and tail of long feathers and feeding chiefly on snakes: family Sagittariidae, order Falconiformes (hawks, falcons, etc) Word origin C18: so called because its crest resembles a group of quill pens stuck behind theear |
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