Definition
to pursue someone or something that is in motion away from you
追赶…；追逐…
He saw her leave the café and immediately ran after her.
他看到她离开咖啡馆，立刻追了上去。
The puppy excitedly ran after its owner, eagerly dashing forward.
小狗兴奋地追着主人，急切地往前冲。
He wanted to catch the escaping cat, so he ran after it desperately.
他想抓住逃跑的猫，于是拼命地追了上去。