4 sentences

1. 警方成功破获了一起跨国诈骗案。

   jǐng​fāng chéng​gōng pò​huò le yī qǐ kuà​guó zhà​piàn'àn.

   The police successfully cracked a transnational fraud case.

   Source: Dong Chinese Dictionary

2. 警方最近破获了一起特大电信诈骗案。

   jǐng​fāng zuì​jìn pò​huò le yī qǐ tè​dà diàn​xìn zhà​piàn àn.

   The police recently cracked a major telecommunications fraud case.

   Source: Dong Chinese Dictionary

3. 公安机关决定对这起合同诈骗案立案侦查。

   gōng'ān jī​guān jué​dìng duì zhè qǐ hé​tong zhà​piàn'àn lì'àn zhēn​chá.

   The public security organs decided to file a case for investigation into this contract fraud.

   Source: Dong Chinese Dictionary

4. 最近类似的诈骗案件层出不穷，请大家提高警惕。

   zuì​jìn lèi​sì de zhà​piàn àn​jiàn céng​chū​bù​qióng, qǐng dà​jiā tí​gāo jǐng​tì.

   Similar fraud cases have been cropping up frequently lately; please be vigilant.

   Source: Dong Chinese Dictionary