Definition
To deteriorate from an already unpleasant or difficult state to an even worse one.
（情況）每況愈下，持續惡化。
Ever since the company started laying off employees, things have gone from bad to worse.
自從公司開始裁員後，情況就每況愈下。
He already had a cold, and then he got caught in the rain last night; his condition has gone from bad to worse.
他本來就已經感冒了，昨晚又淋了雨；他的病情持續惡化。
The service at this restaurant was already bad, but now that it's under new management, it has gone from bad to worse.
這家餐廳的服務本來就不好，現在換了新管理層，情況更是每況愈下。