世界发生了剧变。
The world changed dramatically.
to change dramatically; radical change
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
世界发生了剧变。
The world changed dramatically.
剧变难以预料。
Radical change is hard to predict.