evidence from an unimpeachable source来源可靠的证据When toned down again , the unimpeachable patriot appeared in the witness - box.这阵喧哗过去, 那无懈可击的爱国志士已经登上了证人席.He said all five were men of unimpeachable character.他说这五个都是品格完美无缺的人。...