3 sentences for 辜负 (gū​fù — let down)

1. 你辜负了我的信任。

   nǐ gū​fù le wǒ de xìn​rèn.

   You betrayed my trust.

   Source: OpenSubtitles

2. 我也不许你辜负她。

   wǒ yě bù xǔ nǐ gū​fù tā.

   I will not let you disappoint her.

   Source: OpenSubtitles

3. 我们绝不能辜负老师对我们的期望。

   wǒ​men jué bù néng gū​fù lǎo​shī duì wǒ​men de qī​wàng.

   We must never fail to live up to our teacher's expectations.

   Source: Dong Chinese Dictionary