Sfm
abbr. surface feed per minute 表面/分钟流量; surface feet per minute 每分钟英尺表面线速度数，英尺/分表速
🗣️ 情景例句
It's something that only you and Harry can work out.
这件事只有你和Harry才能定夺。
Bottoms up!
干杯！
This is a telephone with a tape recorder.
这是一台带有磁带录音机的电话。