They made out a shadowy form in front of them.

他们隐约认出了前面的模糊人影。

《牛津词典》

Hackers then sold the data to a second group of criminals operating in shadowy corners of the web.

然后，黑客们将这些数据卖给了另一群在网络阴暗角落里活动的犯罪分子。

youdao

In a shadowy, unaccountable world, we have not yet learned how to name the bad guys — never mind stop them.

在这个疑云满布、不负责任的世界上，我们迄今还没有学会如何找出那些坏家伙——更别说如何去阻止他们了。

youdao

What is really meant by the term defeat, in the parlance of conventional military aims, when facing a shadowy global terrorist network?,".

VOA: standard.2009.10.15

Their captors are from a shadowy Shi'ite group known as the Islamic Shia Resistance in Iraq.

VOA: standard.2009.07.29

Mr. MELDRUM: He was a shadowy figure before then as a guerrilla leader who nobody really knew very much.

NPR: 'Where We Have Hope': A Journalist on Zimbabwe

Some claims by a few shadowy hacker groups, and a list of names that could be high-level Israeli spymasters or the guy who has the contract to clean the bathrooms at the Ministry of Tourism.

FORBES: Did Anonymous Hack Israel's Mossad Spy Agency?

The Syrian government called the Lebanese fighters members of a shadowy jihadist group and said they were killed in a military operation.

WSJ: As Syrian Crisis Intensifies, Fight Bleeds Into Lebanon