Hh
abbr. 倍硬（指铅笔心硬度 double- hard）；半硬的（Half Hard）；重氢, 氚（Heavy Hydrogen）；高功率不定向无线电归航信标（High-powered, non-directional radio homing beacon）；殿下（His Highness）；陛下（His Holiness）；阁下, 先生（His Honour）
📖 牛津释义
HH
abbr 缩写 =
1 His/Her Highness 殿下（用於他称）
HH the Prince/Princess of Wales 威尔斯亲王[王妃]殿下.
2 His Holiness 陛下（用於他称）: HH the Pope 教皇陛下.
🗣️ 情景例句
And there's so much to do.
而且这里总是有许多事可做。
A bird is known by its note, and a man by his talk.
闻其歌知其鸟，听其言知其人。
Hello, Sam. Come in.
你好，萨姆。进来吧。