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
Keep your eyes on the road.
专心开车。
The tortosis wins the race while the hare is sleeping.
兔子睡大觉，乌龟才得胜。
In the early days of the settlement of Australia,
在澳大利亚移民初期，