The prosecution's case hinged on the evidence of a witness who died before the trial.控方的案子取决于一位证人的证词，而该证人已在审判前死去。Without wishing to sound ungrateful, I should like to point out that you only did what you were paid to do.我不想让大家觉得我不领情，但我应该指出你们所做的仅是你们领了报酬而该做的。