鉴定

zhuān jiā jiàn dìng zhè zì jì shì bài lún de qīn bǐ

专家鉴定这字迹是拜伦的亲笔。

Experts have authenticated the writing as that of Byron himself.

tā shuō zì jǐ kě yǐ duì zhè méi yóu piào jìn xíng jiàn dìng

他说自己可以对这枚邮票进行鉴定。

He says he'll have no problem authenticating the stamp.

zhè xiē huā píng bèi jiàn dìng wéi shì zhōng guó de

这些花瓶被鉴定为是中国的。

These vases were identified as Chinese.

zuò jiàn dìng

作鉴定

do an appraisal

xiě jiàn dìng

写鉴定

write an appraisal