Mtm
abbr. 动量指标；材料转移备忘录（Material Transfer Memorandum）；操作方法时间测量（Methods Time Measurement）
🗣️ 情景例句
In order to catch fish, you have to do this.
要钓鱼你就得这样。
This is Lesson One.
这是第一课。
She started to run to the boat.
她拔腿就往小船跑去。