一对一辅导知乎简介：Not because there are any rules of engagement to be followed, but because the distance of 300 steps is within the range of artillery fire from both sides. In order to avoid unnecessary casualties, this area must be cleared.
Not because there are any rules of engagement to be followed, but because the distance of 300 steps is within the range of artillery fire from both sides. In order to avoid unnecessary casualties, this area must be cleared.
