Subject/Situation + 恶化
The verb 恶化 (èhuà) means 'to worsen,' 'to deteriorate,' or 'to aggravate.' It is composed of 恶 (bad/evil) and 化 (to change/transform), literally meaning 'to change for the worse.' It is commonly used to describe situations, conditions, or relationships that are getting worse.
如果不治疗,病情会进一步恶化。
Rúguǒ bù zhìliáo, bìngqíng huì jìnyībù èhuà.
If not treated, the condition will further deteriorate.
两国之间的关系最近明显恶化了。
Liǎng guó zhījiān de guānxì zuìjìn míngxiǎn èhuà le.
The relationship between the two countries has clearly deteriorated recently.
空气质量持续恶化,很多人开始戴口罩。
Kōngqì zhìliàng chíxù èhuà, hěn duō rén kāishǐ dài kǒuzhào.
Air quality keeps deteriorating, and many people have started wearing masks.