4 sentences

1. 我感觉焕然一新。

   wǒ gǎn​jué huàn​rán​yī​xīn.

   I feel brand new.

   Source: OpenSubtitles

2. 经过一番装修，这栋老房子焕然一新。

   jīng​guò yī fān zhuāng​xiū, zhè dòng lǎo fáng​zi huàn​rán​yī​xīn.

   The old house looked brand new after the renovation.

   Source: Dong Chinese Dictionary

3. 改革开放使这个城市的面貌焕然一新。

   gǎi​gé kāi​fàng shǐ zhè gè chéng​shì de miàn​mào huàn​rán​yī​xīn.

   Reform and opening up have given this city a brand-new look.

   Source: Dong Chinese Dictionary

4. 老房子的墙面经过重新刷新，看起来焕然一新。

   lǎo fáng​zi de qiáng​miàn jīng​guò chóng​xīn shuā​xīn, kàn qi​lai huàn​rán​yī​xīn.

   The walls of the old house look brand new after being repainted.

   Source: Dong Chinese Dictionary