[Duck](../../%E4%B8%80.%E6%95%B0%E6%8D%AE%E5%A4%84%E7%90%86%E7%B1%BB/Duck/%E6%8F%92%E4%BB%B6%E4%BB%8B%E7%BB%8D%E5%8F%8A%E4%B8%8B%E8%BD%BD.md)