Rescuers had to call off the search due to worsening weather.
由于天气越来越坏，救援人员只得停止搜索。
All hope of improvement has been snatched away by the sudden worsening of her condition.
她的病情突然恶化，使一切康复的希望都化为泡影。
The process or condition of worsening or degenerating.
恶化，变坏恶化或变坏的状况或过程
