He found no direct evidence to identify a leaker.
他找不到確認泄密者的直接證據(jù)。
柯林斯例句
In my experience, you generally know the leaker, but proving it can be nearly impossible.
根據(jù)我的經(jīng)驗, 你一般都知道誰是泄密者, 但幾乎不可能去證實.
互聯(lián)網(wǎng)
"the president wanted to know who the leakers were"