1 sentence

1. 他才华平平，却总是自命不凡，看不起别人。

   tā cái​huá píng​píng, què zǒng​shì zì​mìng​bù​fán, kàn​bu​qǐ bié​ren.

   He has mediocre talent but is always pretentious and looks down on others.

   Source: Dong Chinese Dictionary