be in hot pursuit of 穷追不舍

“穷追不舍”，汉语成语，意思是坚持追赶不放松。可以翻译为“keep after，be in hot pursuit of或press hard upon”等。

例句：

警察穷追不舍，终于在一个小山村抓到了他。

The police kept after him until they finally captured him in a small village.

穷追不舍她开车迅速离去，记者们则在后面穷追不舍。

She sped away in her car with journalists in hot pursuit.