他是古家俱鉴定家.He is a connoisseur of antique furniture.利奥把自己看成是一名疯狂症的鉴定家.Leo held himself to be a critic of craziness.幽默的鉴定家非常之少, 而且他们都不一致.There are very few good judges of humor, and they do not agree....

“鉴定家”的英语可以翻译为：connoisseur，critic ...