[è huà]
worsen; deteriorate; take a turn for the worse;exacerbate
aggravate a matter
使事情恶化
It is saddening to see that relations between the two countries should have deteriorated to the present state.
两国关系恶化到今天这个地步， 是令人痛心的。
The patient took a turn for the worse.
病人的病情恶化了。
The situation worsened.
形势恶化了。