窮追不捨
in hot pursuit (of sb)
(對某人)窮追不捨
following sb closely and determined to catch them
She sped away in her car with journalists in hot pursuit.她開車迅速離去,記者們則在後面窮追不捨。
釋義來自《牛津高階英漢雙解詞典》第 9 版