Fra
abbr. 联邦铁路局（Federal Railroad Administration）；联邦储备法（Federal Reserve Act）；流量警报记录器（Flow Alarm Recorder）；自由基型（Free Radical Type）
🗣️ 情景例句
Ten o'clock.
十点钟。
Did you have fun?
你玩得开心吗？
You and Lily must come over to my house and see!
你和莉莉应该到我家来看看！