Hdf
abbr. high-frequency direction finder 高频测向器
🗣️ 情景例句
His number is five, five, five, seven, five, three, two.
他的号码是5557532。
We have agreed on all terms in the contract. Shall we sign it next week?
我们对合同各项条款全无异议，下周签合同如何？
The only passengers, a young woman and her two baby daughters, were unhurt.
机上仅有的乘客，一位年轻的妇女和她的两个女婴却平安无事。