da copo

例句：

1. 1.The dog was barking at the door.
   那只狗在门口吠叫。
2. 2. The dog is loyal to its owner.
   这只狗对它的所有者很忠诚。
3. 3.The dog's tail wagged excitedly.
   那只狗兴奋地摇着尾巴。