Hhd
abbr. 古典文学博士（Humanitatum Doctor, 等于Doctor of Humanities）
🗣️ 情景例句
Dad and I were planning to go to the game,
爸爸本来要和我一起去，
The day is long to him who knows not how to use it.
百无聊赖。
You work too much.
你做得太多了。