约分的技巧和口诀

简介：At the same time, following the orders of the two diamond-level mutant beast kings, the mutant beasts launched an even more frenzied attack. Of course, this was also the order given by Qin Fen in advance, and he did not let the artillery fire continue to fire in order to cover up the continuous shooting. The secret of multiple cannonballs to prevent the mutant beast from retreating.