adducer

n.a discussant who offers an example or a reason or a proof

1. As an adducer, she played a key role in the trial.
   作为一名证据提供者，她在审判中发挥了关键作用。
2. The adducer provided convincing data to support the claim.
   该证据提供者提供了令人信服的数据来支持该主张。