hh英式朗读美式朗读基本解释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)下一个单词:hh beacon