track down
柯林斯詞典
1. PHRASAL VERB If you track down someone or something, you find them, or find information about them, after a difficult or long search. (經(jīng)過(guò)長(zhǎng)時(shí)間艱難搜索后) 找到
She had spent years trying to track down her parents. 她已經(jīng)花了多年試圖找到她的父母。
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