Hdf
abbr. high-frequency direction finder 高频测向器
🗣️ 情景例句
Thanks very much. It was a great party!
非常感谢，今天的聚会棒极了！
How do you spell it?
怎么拼？
By 1820 the population of New York had grown to about 125,000, making it the largest city in the USA.
到1820年，纽约市的人口增长到12。5万人左右，使它成了当时美国最大的城市。