It is a crime to counterfeit money.

伪造钱币是犯罪行为。

It is against the law to counterfeit money.

伪造货币是违法的。

The cashier would not accept the payment because it was made with counterfeit money.

比喻脏钱，黑钱，不法渠道取得的收入。

Researchers are mimicking these structures to make it difficult to counterfeit money or credit CARDS.

研究员通过模仿蝶翼的这种精密结构来加大伪造货币和信用卡的难度。

The technology against counterfeit money is mainly reflected in plate making, engraving, printing, printing materials and printing ink.

货币的防伪技术主要反映在制版、雕刻、印刷等技术和印刷材料如纸张、油墨上。