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
We just got here.
我们才刚刚到这儿。
It's a bit too hard.
这有点太难了吧。
There's no need for that. We'll have dinner another time.
不必为那件事惭愧。我们改个时间再共进晚餐吧。