七个数复式三中三多少组

简介：At this time, the snow was falling heavier and heavier, and the surrounding area was already completely white. It was slippery underfoot, but if you were not careful, you would slip and fall to the ground. The heavy snow and low temperature affected the effectiveness of Mongolian bows and arrows. Not only were the bow strings prone to breaking, but the power of the bows and arrows was also weakened a lot.