First of all, the volume of a cup refers to the maximum amount of water that a cup can hold, usually in milliliters or liters. Secondly, the shape of the cup will also affect the water depth. For example, if it is a 100 ml cup, the water depth will be deeper than a short and wide round cup.
Finally, the volume of water in the cup is the water depth, which can be obtained by measuring the volume of water. It should be noted that the water cup must be placed on a horizontal surface, and the eyes should be parallel to the water surface when reading to avoid parallax.
Therefore, the answer to the question of the depth of a glass of water at the beginning of Xiaoshengchu depends on the comprehensive influence of the above three factors and needs specific analysis.