Subject + 追赶 + Object / 被 + Person + 追赶
追赶 (zhuīgǎn) means "to chase" or "to pursue," describing the act of running after someone or something to catch them. It implies active, physical pursuit. For example, 被太太追赶 means "was chased by the lady."
那条狗追赶着一只猫跑过了马路。
Nà tiáo gǒu zhuīgǎn zhe yì zhī māo pǎo guò le mǎlù.
That dog chased a cat across the road.
警察追赶了半天才抓住了那个小偷。
Jǐngchá zhuīgǎn le bàntiān cái zhuā zhù le nàge xiǎotōu.
The police chased for a long time before finally catching the thief.
孩子们在草地上互相追赶,玩得很开心。
Háizimen zài cǎodì shàng hùxiāng zhuīgǎn, wán de hěn kāixīn.
The children chased each other on the grass, having a great time.