adj.先前存在的，先于…而存在的

原形：preexist

She has a preexisting condition that requires regular medical attention.
她有需要定期医疗照顾的既有病状。
The insurance policy doesn't cover preexisting conditions.
保险政策不包括既存疾病。
He was denied coverage because of his preexisting heart condition.
因为他的先天性心脏病，他被拒绝了保险覆盖。
Her asthma is a preexisting health issue she must manage carefully.
她的哮喘是一种她必须谨慎管理的先前健康问题。
The new law ensures that people with preexisting conditions won't be discriminated against.
新法律确保有既往病史的人不会受到歧视。
They waived the waiting period for her preexisting condition.
他们免除了她既存状况的等待期。
The doctor recommended lifestyle changes to manage her preexisting diabetes.
医生建议她改变生活方式来管理她的糖尿病。
Insurance premiums may increase due to a person's preexisting medical history.
由于个人的既往病史，保险费可能会增加。
The patient disclosed their preexisting condition to the surgeon before the operation.
病人在手术前向外科医生透露了他们的既往病史。
The school provided special accommodations for students with preexisting learning difficulties.
学校为有既往学习困难的学生提供了特殊设施。