The incident cast doubt on her motives and reliability.

这件事使人怀疑她有何动机，以及她是否可靠。

《牛津词典》

The second cloud over tropical certification schemes, as Wal-Mart may find, is doubt about their reliability.

热带地区认证系统的第二个消极因素是企业的可靠性将受到质疑，正如沃尔玛可能会发现的。

youdao

Mr Maggi in turn has cast doubt on the reliability of the Numbers on deforestation.

Maggi先生反过来质疑关于森林砍伐的数字的可信度。

youdao

One early reason for banning tests was the idea that, as years passed, the Russians and Americans would doubt the reliability of their bombs and thus be reluctant to use them.

CNN: ASIANOW - Asiaweek

The second cloud over tropical certification schemes, as Wal-Mart may find, is doubt about their reliability.

ECONOMIST: Western consciences can do only so much to conserve forests

They cast doubt on the reliability of her memories and suggested there was a possibility they could be false.

BBC: 'Memories' of historic abuse leading to justice errors