1 sentence for 天翻地覆 (tiān​fān​dì​fù — upheaval)

1. 改革开放四十年来，中国的面貌发生了天翻地覆的变化。

   gǎi​gé​kāi​fàng sì​shí nián lái, Zhōng​guó de miàn​mào fā​shēng le tiān​fān​dì​fù de biàn​huà.

   Over the past forty years of reform and opening up, China has undergone earth-shaking changes.

   Source: Dong Chinese Dictionary