preexisting

• 指在某个事件或时间点之前就已经存在或发生的。

Describes something that exists before a particular event or point in time.

1. Existing beforeB2formal

   Something that already exists before a particular event, situation, or time.

   预先存在的

   • The patient had a preexisting condition that complicated the surgery.
   • The contract covers only new work, not preexisting obligations.
   • The preexisting rules were updated to reflect modern practices.

   同义词antecedentprecedingpreviousprior

   反义词followingnewresultantsubsequent

• 动词，指在某事物之前就已经存在，强调时间或顺序上的在先性。

A verb used to indicate the act of existing before something else in time or sequence.

1. Exist beforehandC1formal

   To exist before a particular event or point in time.

   先于存在

   • The ancient ruins preexist the modern city by thousands of years.
   • Many of these traditions preexist the written records.
   • The condition must have preexisted the accident for the claim to be denied.

   同义词antedateprecedepredate