这是一场史无前例的变革。
This is a change unprecedented in history.
(idiom) unprecedented in history
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.
这是一场史无前例的变革。
This is a change unprecedented in history.
什么危机史无前例?
What crisis has no precedent in history?