Such a point of the field of battle devours more combatants than such another, just as more or less spongy soils soak up more or less quickly the water which is poured on them.

• 战场的某一点所吞没的战士会比另一点多些，仿佛那些地方的海绵吸水性强弱不同，因而吸收水量的快慢也不一样。