成年鸭；已长大的鸭子,与鸭雏相对
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成年鸭；已长大的鸭子,与鸭雏相对；成年鸭；已长大的鸭子,与鸭雏相对
a fully grown duck; a duck that is no longer a young duck, especially in contrast to a duckling
The duckling quickly grew into a healthy adult duck.
这只小鸭很快长成了一只健康的成年鸭。
成年鸭；已长大的鸭子,与鸭雏相对
a fully grown duck; a duck that is no longer a young duck, especially in contrast to a duckling
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