2 sentences for 毛病 (máo​bing — defect)

1. 或许他没什么毛病。

   huò​xǔ tā méi​shén​me máo​bing.

   Maybe nothing's wrong with him.

   Source: OpenSubtitles

2. 他总是在挑剔别人的毛病。

   tā zǒng​shì zài tiāo tī bié​ren de máo​bìng.

   He is always finding fault with others.

   Source: Tatoeba