Sfr
abbr. schweizerfranc(s) （丹麦-挪威语）瑞士法郎; star-formation rate 星型结构率; single frequency receiver 单频率接收器; sinking fund rate (of return) 船舶沉没基金率（返回）
🗣️ 情景例句
If you're under twenty-one years of age ...
如果你还不到二十一岁……
What number should I dial to get the operator?
我应该拨什么号码找到接线员？
Would you like a cup of tea, Chen Hui?
你想喝杯茶吗？陈慧？