"letters entitling the bearer to certain credit or confidence," 1670s, from Medieval Latin credentialis, from credentia (see credence). Probably immediately as a shortening of letters credential (1520s, with French word order); earlier was letter of credence (mid-14c.).
权威例句
1. Britain's new ambassador to Lebanon has presented his credentials to the President.
英国驻黎巴嫩的新任大使已将国书递交给总统。
2. His Republican credentials made him an asset.
他作为共和党人的资历成了他的一笔财富。
3. Her academic credentials are impeccable.
她的学术背景无可挑剔。
4. He has all the credentials for the job.
他做这项工作完全够格。
5. First, he had to establish his credentials as a researcher.