| 单词 | Cygnus columbianus bewickii |
| 释义 | Cygnus columbianus bewickii (once / 11819311 pages) n WORD FAMILY Cygnus columbianus bewickii n Eurasian subspecies of tundra swan; smaller than the whooper Syn|Hyper Bewick's swan Cygnus columbianus, tundra swan swan that nests in tundra regions of the New and Old Worlds |
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