Alongside useful skills, such as building fires, people copied less useful ones like fancy body decoration and downright costly ones such as energetic but futile rain dances.

Alongside useful skills, such as building fires, people copied less useful ones like fancy body decoration and downright costly ones such as energetic but futile rain dances.

除了生火之类的有用技巧，人开始向别人抄袭比较没有用处的玩意，例如花俏的身体装饰，以及既消耗体力又徒劳的玩意，如跳祈雨舞。