What is the bow down?

The bow down on the ground, such as the bow road, arc building can make people in the entire building vulnerable to mass annihilation or financial ruin.In the bow down below, the more devastating, if in a village near, the whole village is the offence of mass annihilation, and a lot of money to break the consumption or disappointment, failure, and so on.True water's bow force is larger than the ground, be careful when buyers observe surroundings, avoid loss.