Apparently the boy had a longstanding reputation for bad behaviour and his mum for even worse behaviour if he was challenged.

很显然，这个男孩恶行多端的臭名流传已久，他妈妈亦是如此，如果儿子受到质疑，妈妈的行为会更恶劣。

youdao

But this version of events was challenged after witnesses recognised the dead man from photographs that were published on Friday.

但是这种说法受到了从周五出版的照片中认出死者的目击者的怀疑。

youdao

She was challenged on her merger plan with Compaq: “The fact that the tech industry might have to consolidate was viewed as heresy.”

她与康柏的合并计划受到挑战：“科技工业可能要联合，被视为异端之说。”

youdao

(Sound) On the program itself, Griffin was constantly challenged, as in this exchange, where he tries to explain his stance on immigration.

VOA: standard.2009.10.23

Well, this view, this evolutionary view, or evolutionary model, was challenged by man a named Yehezkel Kaufmann in the 1930's.

这个改进了的观点，或者说改进了的模型，在20世纪30年代受到了来自考夫曼的质疑。

耶鲁公开课 - 旧约导论课程节选

It was challenged in the courts on the ground that it violates fundamental rights.

ECONOMIST: Another step on the slippery authoritarian slope

It was challenged by a security guard who wanted to keep his gun in his home.

NPR: Supreme Court Strikes Down D.C. Handgun Ban

This is significant because SQ 755 was challenged in federal court within days of passage.

CENTERFORSECURITYPOLICY: American Laws for American Courts