on the trail of

基本解释

We were like detective, Mrs. Vidian and J. We put ourselves on the trail of any Amerinians who lived in Paris.
我和威迪安夫人像侦探一样，四处打探着住在巴黎的亚美尼亚人的线索。
But awaking to the two worlds brought face to face is tantamount to getting on the trail of their secret relationships.
然而，觉悟到这两个世界对峙的存在就相当于走上了揭开他们秘密关系的道路。
Henry Waxman, the chairman of the House Oversight and Government Reform Committee and the Democrats' scourge-in-chief, is hot on the trail of these extra-mural e-mails.
亨利·维克斯曼，众议院督察和政府改革委员会主席及民主党首席党鞭，几乎已经找到了这些官方外邮件。

Carolyn Maloney's own tragedy struck last September, when she learned that her husband of 31 years had died on a mountain trail, during an expedition to the Himalayas.
and trail run instead of doing it on the street
在小路上跑，而不是在街上
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The Federal Reserve is hot on the trail of what caused the near collapse of the entire banking system.
FORBES: New Fed Regulation Takes 887,624 Hours a Year to Comply With