They started clandestine activities against the election.

他们暗地里活动，以反对这次的选举。

youdao

And finally, there must be a concerted effort to develop effective congressional and public oversight of these clandestine activities.

最后，必须做出共同努力来实现对这些秘密活动的有效的国会和大众监督。

youdao

Most of the clandestine activities of the wizarding world were to conceal their powers from the muggles for their own protection, rather than for the disguising any improper purposes.

绝大部份魔法世界对麻瓜所做的偷鸡摸狗事情，是将魔法隐藏，好保护麻瓜他们。

youdao

That would work only if Iraq could be trusted to come clean about its clandestine activities.

ECONOMIST: Settling with Saddam

Factoring in what must be presumed to be considerable clandestine activities would only shorten, not lengthen, estimates of the amount of time it will take Iran to obtain nuclear weapons.

CENTERFORSECURITYPOLICY: See no evil?

On March 15, 2005, David Obey, then the ranking Democrat on the Republican-led House Appropriations Committee, announced that he was putting aside an amendment that he had intended to offer that day, and that would have cut off all funding for national-intelligence programs unless the President agreed to keep Congress fully informed about clandestine military activities undertaken in the war on terror.

NEWYORKER: Preparing the Battlefield