The foreman expressed the opinion that the whole case depended on the expert evidence.

工头表示，整个案件要靠专家证据。

He had told her once that when he was subpoenaed as a witness on a case where he was to give expert evidence he had hardly slept for a week before.

有一次他告诉她， 当他被传唤为一个案件的证人， 他要提供专家证据时， 他一周前几乎没有睡觉。