例句：
The main course was roast duck.
主菜是烤鸭。
She chose a bench beside the duck pond and sat down.
她选了鸭池旁的一张长椅坐了下来。
The cat was now within striking distance of the duck.
此时，猫就在可攻击鸭子的距离内。
On a lighter note , we end the news today with a story about a duck called Quackers.
为了轻松一下，我们最后讲一个名叫“嘎嘎”的鸭子的故事来结束今天的新闻报道。