Are you aware these notes are counterfeit?

你觉察到这些钞票是伪造的吗？

《牛津词典》

The highway authority in Anhui province launched a campaign against counterfeit money, pitting Toll Gate workers against each other in a contest to distinguish real notes from fakes.

安徽省高速公路总公司进行了一次识别假币技能比赛，收费站工作人员比赛谁能把假币从真钞中甄别出来。

youdao

The counterfeit notes were "of exceptional quality", officials said.

BBC: Portugal seizes huge haul of fake euros

Super-notes are highly sophisticated counterfeit US bills that are nearly undetectable.

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