He feels that a variety of sorts of clinical evidence at his disposal warrant the distinction, but it is not an easy one.

他觉得很多,临床证据都可以证明二者不同，但是这并不简单。

耶鲁公开课 - 文学理论导论课程节选

She was part of the clinical trial that did this, and they gave everybody certificates after it was done.

她当时就在参与疫苗的临床试验,试验后他们会给每个参与者颁发一个证明

耶鲁公开课 - 生物医学工程探索课程节选

So she got a certificate at the end thanking her for participating in the clinical trial, and also telling her to go get the real vaccine because she hadn't had it yet.

试验最后,她得到了一个证明其参与,这项临床试验的证书,并且被告之要去注射真的疫苗,因为她还没有被注射过

耶鲁公开课 - 生物医学工程探索课程节选