原题
At the dawn of civilization, humans relied heavily on their natural surroundings to meet basic needs. Early humans were primarily hunters and gatherers, foraging for edible plants and hunting wild animals. This required humans to move often to find food. Over ti , they obse natural patt and be planting se , sparking t agricultural revol . This cha allowed perm settlements a growing communities. With larger populations came complex social structures, trade, and specialized crafts.
参考答案：me rved erns gan eds he ution nge anent nd
解题思路
老师暂未填写解题思路。