Equimarginal principle
[经] 平衡边际原则
🧩 词语组成解析
🗣️ 情景例句
Please sit down.
请坐下。
How long will it take for a telegram to get to California?
你把电报传到加州要多长时间？
Most of the earth's surface is covered by water.
大部分的地球表面被水覆盖着。