2 sentences for 改造 (gǎi​zào — transformation)

1. 每个改造项目都有其挑战。

   měi​gè gǎi​zào xiàng​mù dōu yǒu qí tiǎo​zhàn.

   Every renovation project has its challenges.

   Source: CCMatrix

2. 经过多年的改造，酒店在2011年再次开放。

   jīng​guò duō​nián de gǎi​zào, jiǔ​diàn zài2011 nián zài​cì kāi​fàng.

   After years of renovation, the hotel reopened in 2011.

   Source: CCMatrix