Hf
[医] 铃(72号元素)
📖 牛津释义
HF
abbr
缩写 = (radio 无) high frequency. Cf 参看 LF.
🗣️ 情景例句
Don't lose sleep over it.
别因为这事儿睡不着觉。
How could you do this?
怎么可以这样？
It was the middle of winter.
此时正值隆冬季节，