阶梯倍投法是否实用?简介：As a dwarf, sometimes I can't help but sympathize with the refugees affected by the war, who are displaced and exchanged for food. Oher couldn't figure out why people of the same race could be so cruel to their own kind.
As a dwarf, sometimes I can't help but sympathize with the refugees affected by the war, who are displaced and exchanged for food. Oher couldn't figure out why people of the same race could be so cruel to their own kind.
