Cfi
abbr. 晶体频率指示器
🗣️ 情景例句
A kind of a fifty-year anniversary reunion.
等于是五十周年重逢聚会。
He was absent yesterday. Do you know why?
昨天他没到，你知道为什么吗？
At the end of this period we put the play on in a theatre.
最后我们就在剧场上演这出戏。