Rfk
abbr. Anguilla; Mississippi 美国; radio frequency keying 射频键控; radio frequency kit 射频（配套）元件
🗣️ 情景例句
You seem to have some reservations.
看起来你还有些犹豫。
He's a composer of popular songs.I like his music a lot.
他是流行歌曲作曲家，我很喜欢他的音乐。
How far is it?
有多远？