“under authority”意思是经有关部门，有关局或者政府的许可。
拓展：例句，For I myself am a man under authority, with soldiers under me. 因为我在人的权下, 也有兵在我以下.
Communicate with the government under authority. 在授权下与相关政府管理机构沟通.
His authority and, by implication, that of his management team is underthreat。他的权威，同时也意味着他整个管理团队的权威，正面临着威胁。
经有关当局许可，航海及海运专业术语U-... ... under authorities 经有关当局许可 under authority 经有关当局许可 under average 受损.
消防英语专业词汇(U-Z) ... undecomposed explosive 未分解炸药 under authority 经有关当局批准的 under blanket 电热毯.