testify

/ˈtɛstɪˌfaɪ/

give testimony in a court of law

Chinese meaning: 作证；证明

The witness was called to testify in court about what she saw.

证人被传唤出庭就她所看到的情况作证。

Several experts testified to the effectiveness of the new treatment.

几位专家证实了新疗法的有效性。