“順藤摸瓜”，漢語成語，字面意思是“順著瓜藤可以摸到瓜（follow the vine to get the melon）”，比喻按照某個線索查究事情，可以翻譯為“track down somebody [something] by following clues”。

 

例句：

 

他們順藤摸瓜，終于找到了罪犯的下落。

They tracked the criminal down by following clues on his whereabouts.