Hvac
abbr. 高压交流电（High Voltage Alternating Current）
🗣️ 情景例句
Now that illiteracy is not so wide spread, people everywhere are free to enjoy great literature.
现在文盲不是很普遍，世界各地的人都可以很自由地欣赏文学作品。
The way you look at it seems to be quite different from the way I look at it.
你的看法和我的似乎不太相同。
I will continue my learning, though I am tired of learning English.
尽管我很烦英语，我还是要学它。