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 information and for being so helpful.
谢谢你的帮助和提供的讯息。
What does she mean by canceling her performance?
她取消自己的演出是什么意思？
If he had not broken his tooth, he would not be in hospital now.
如果他没有把牙齿弄坏，现在就不在医院了。