"他跑向狗"用英语可以翻译成 "he runs towards the dog"。

这个句子的来源是英语中表示动作的动词"run"，表示方向的介词"towards"，以及表示狗的名词"dog"。

例句：

He runs towards the dog every morning. (他每天早上都跑向狗。)
I saw him running towards the dog in the park. (我在公园里看到他跑向狗。)
She smiled as she watched her son run towards the dog. (她看着儿子跑向狗时笑了。)