First, he had to establish his credentials as a researcher.
首先，他得
明自己做调查员的资
。
,信任状
明;
;明, 执照;明,鉴定;;;，
件;，学位;明是真实的、可靠的或有效的;,能力,作能力;First, he had to establish his credentials as a researcher.
首先，他得明自己做调查员的资。
The ambassador presented her credentials to the monarch.
外交官将她的明
呈交国王。
声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
