This memo could be the smoking gun that investigators have been looking for.

这份备忘录可能是调查人员一直在寻找的证据。

《牛津词典》

North American airlines, having exhausted all means of earning customer loyalty at home, have been looking for ways to reach out to foreign flyers.

北美航空公司已经竭尽所能赢得了本土客户的忠诚度，他们一直在寻找方法吸引海外客户。

youdao

Have you found the book you have been looking for?

你找的书找着了吗？

《新英汉大辞典》

Researchers have been looking for the cause or causes of attention deficit hyperactivity disorder.

VOA: special.2009.09.29

East Texas is right and now he's punching cows," and that was exactly right, and still I couldn't believe Gene could really have known Slim whom I have been looking for more or less for years.

是在得克萨斯州的东部，但现在他在放牛“,“这可真是太巧了“，但我仍然不能相信,吉恩真的认识细杆，这几年来我一直在找他。

耶鲁公开课 - 1945年后的美国小说课程节选

We've been looking at Plato's arguments for the immortality of the soul, and so far, I have to say I haven't found them very compelling arguments.

我们研究了柏拉图关于,灵魂不朽的论证，到目前为止，我要说的是,我发现这些论证并不是很有说服力。

耶鲁公开课 - 死亡课程节选

About 28% of these young people have been looking for work for over a year.

BBC: Long-term thinking for the UK economy

In my Wellington Letter, I have been looking for a serious crisis to start in early September.

FORBES: It's Time To Prepare For The Crisis Ahead

Bolton have been looking for a new manager since parting company with Sammy Lee on 17 October.

BBC: Bolton target Megson leaves Foxes