黑鸭

例句：

1. 1. The ducks are swimming in the pond.
   鸭子们在池塘里游泳。
2. 2. The black duck is a rare species.
   黑鸭是一种稀有物种。
3. 3. The black duck was caught by the hunter.
   黑鸭被猎人捕获了。