Hdf
abbr. high-frequency direction finder 高频测向器
🗣️ 情景例句
She owes her good health to her regular life.
她把健康归功于规律的生活。
You should have your suit cleaned and ironed.
你应该把你的套装拿去洗烫一下。
Mum, this is my teacher, Miss Gao.
妈妈，这位是我的老师，高小姐。