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
Thanks for your understanding and cooperation.
谢谢你的理解和合作。
It's up in the air.
尚未决定。
I looked at my watch.It was true.
我看了一下我的手表，果真如此。