她胆怯地走到坐在桌边的女士面前, 手里紧紧握着毕业证和鉴定书.Nervously she approached the lady at the desk, holding her certificate and testimonials very tight.鉴定书无主检、审核、批准签字无效.The certification is invalid without the signature of appraiser , checker...

“鉴定书”的英语可以翻译为：[法] expertise report，surveyor's report，verification document，written expert testimony ...