追溯到四千年前的原始社会，恶劣的生活条件迫使古人使用石块和木器作为武器来打猎和自卫。
Far back in primitive society about four thousand years ago, hard living conditions compelled the ancient people to use stone and wooden tools as weapons for hunting and self-defence.
若有机会，我会返古，回到原始社会，过着群居生活，享受绿色食品和无污染环境所带来的乐趣。
If I have a chance, I prefer to go back to the primitive society and live a community life and enjoy the green food and unpolluted environment.
假如没有了学习，人类将永远生活在愚昧和黑暗的原始社会中。
If there is no learning, humans will live in the darkness forever and stay in the primitive society.
从原始社会到今天，阴阳和永生的观念始终贯穿中国的社会生活和民族文化。
From primitive society to the present day, the view of yin-yang and perpetual life has permeated in all aspects of social life and the national culture of Chinese society.
从原始社会到今天，阴阳和永生的观念始终贯穿中国的社会生活和民族文化。
From primitive society to the present day, the view of yin-yang and perpetual life has permeated in all aspects of social life and the national culture of Chinese society.
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