���������"The dog ran to the park."

"The" 是冠词,表示 "狗" 是具体的一只。

"Ran" 是动词,表示 "小狗" 在公园里跑。

"To" 是介词,表示 "小狗" 跑到了 "公园"。

其他一些例句:

The dog chased after the ball and ran to the park. (小狗追着球跑到了公园。)
The dog escaped from the backyard and ran to the park. (小狗从后院逃跑到了公园。)
The dog loves to run and play in the park. (小狗喜欢在公园里跑和玩。)