Ha is used in writing to represent a noise that people make to show they are surprised, annoyed, or pleased about something.
例句
Ha! said Wren. Think I'd trust you?...“哈！”雷恩说，“你以为我会相信你？”Hah! Just as I suspected.哈！正和我猜的一样。
英汉词典释义
interj.
(表示惊讶、欢乐、怀疑等)哈;嘿
“Ha!” she said, “Isn’t that wonderful?”“哈!”她说道,“那不是好极了?”
英英词典释义
Noun
1. (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day