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
Looking around. Especially with a purchase of this kind.
到处看看， 特别是这一类买卖。
Each person follows his own interests.
人人都追求自己的利益。
Mr. Smith taught English at a school.
史密斯先生在一所学校教英语。