Hhd
abbr. 古典文学博士（Humanitatum Doctor, 等于Doctor of Humanities）
🗣️ 情景例句
It sets the tone for the whole show.
它决定了整个展览的气氛。
She began playing the violin when she was nine.
九岁的时候，她开始拉小提琴。
After the War of Independence ended, New York became the capital of the USA for a short time (1789-90) before Washington, D.C.
独立战争结束以后，在华盛顿成为首都之前，纽约市曾经一度是美国的首都，不过时间很短（1789-90）。