1 sentence

1. 他做人一向坦荡，从不背人做亏心事。

   tā zuò​rén yī​xiàng tǎn​dàng, cóng bù bèi​rén zuò kuī​xīn​shì.

   He has always been an upright person and never does anything shameful behind people's backs.

   Source: Dong Chinese Dictionary