Examples
zhè xiē这些nián年kōng qì空气zhì liàng质量è huà恶化le了。
这些年空气质量恶化了。
Air quality has deteriorated these past few years.
为了避免情况恶化，我们马上采取了行动。
We took action immediately so that things wouldn't get worse.
他的瘫痪正在恶化，不久他就不能下床了。
His paralysis is progressing, and soon he won't be able to get out of bed.