black-necked swan
noun
The swan Cygnus melanocorypha, which breeds in southern South America and is white with a black head and neck and a red knob at the base of the bill.
Origin
Late 18th century.
| 单词 | black-necked swan |
| 释义 | black-necked swannoun The swan Cygnus melanocorypha, which breeds in southern South America and is white with a black head and neck and a red knob at the base of the bill. Origin |
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