mallard
mallard(复 同单,或mallards)- the commonest duck of the northern hemisphere and the ancestor of most domestic ducks, the male having a dark green head and white collar
绿头鸭
- Anas platyrhynchos, family Anatidae
拉丁名Anas platyrhynchos,鸭科
语源- Middle English: from Old French wild drake', from masle 'male'
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