attested

/əˈtestɪd/GREsat
(of cattle, etc) certified to be free from a disease, esp from tuberculosis (牲畜等的)无疾病证明的; 尤指肺结核

adjective [原级]证明无病的;经检验证明无病的;经检验证明无菌的

The signature was attested by two witnesses.
这个签名有两名见证人。

单词造句:
网友用“Attested”造句精选
It has been spelled weir and wier, and in modern dialects, wair and ware have been attested, pointing to various pronunciations. 它曾被拼写为 weir 和 wier,且在现代方言中,wair 和 ware 也被证实,指的是各种不同的发音。
The noun is first attested 1841; the verb 1888. 它的名词形式在1841年首次确立,动词形式则是1888年。