柯林斯詞典Royal Highness (Royal Highnesses) 1. N-VOC Expressions such as Your Royal Highness and Their Royal Highnesses are used to address or refer to members of royal families who are not kings or queens. 殿下[poss N; PRON: poss PRON] [禮貌] 返回 Royal Highness劍橋詞典?Her/His/Your Royal Highness used when you are speaking about or to a royal person （對(duì)王室成員的尊稱）殿下 Thank you, Your Royal Highness . 多謝殿下。 His Royal Highness the Prince of Wales 威爾士親王殿下 返回 Royal Highness