2 sentences

1. 小人不敢欺瞒大人。

   xiǎo​rén bù gǎn qī​mán dà​ren.

   I wouldn't dare deceive you, my lord.

   Source: Dong Chinese Dictionary

2. 对待朋友应当以诚相待，不要互相欺瞒。

   duì​dài péng​you yīng​dāng yǐ chéng xiāng​dài, bù yào hù​xiāng qī​mán.

   Friends should treat each other with sincerity and not deceive one another.

   Source: Dong Chinese Dictionary