Zhè zuò chéngshì zài guòqù èrshí nián lǐ fāshēng le shēnkè de tuìbiàn.
This city has undergone a profound transformation over the past twenty years.
Tips
memory
蜕 means 'to shed skin (like a snake or insect)' — 蜕变 is literally 'to shed and change', like an insect emerging from its old shell. A powerful metaphor for personal or social transformation.