Hdf
abbr. high-frequency direction finder 高频测向器
🗣️ 情景例句
we'll spend more time together, Ellen.
我们会有更多的时间在一起， Ellen。
What lives in there?
那里面生存着什么呀？
It is disturbing to think that a dangerous wild animal is still at large in the quiet countryside.
想到在宁静的乡村里有一头危险的野兽继续逍遥流窜，真令人担心。