| 单词 | crested swift |
| 释义 | crested swift (once / 11819311 pages) n WORD FAMILY crested swift n birds of southeast Asia and East Indies differing from true swifts in having upright crests and nesting in trees Syn|Hyper tree swift apodiform bird nonpasserine bird having long wings and weak feet; spends much of its time in flight |
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