他的病情恶化了。
His condition has worsened.
to worsen
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
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Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
他的病情恶化了。
His condition has worsened.
两国关系开始恶化。
Relations between the two countries began to deteriorate.