Because that will result in a threat to the existence of human society.
因为这会导致对人类社会生存的威胁。
But it is mainly a tragedy because to be human means to live in a totally different way, more complex and more dramatic than natural existence.
但是人的主要意义在于他是一个悲剧，作为人类意味着以完全不同的方式生活着，比之自然之存在，他更为复杂，且更为戏剧。
"Natural selection can't call things into existence just because they are desirable, " says Tattersall, one of the deans of human evolutionary research. "Novelties happen randomly."
人类进化研究院的院长塔特索尔说，自然选择不能让令人喜欢的东西自行存在
Furthermore, this kind of study possesses a great significance to the human existence because the landscape painting is the expression of the relationship among human, art and natural world.
而且对人生存在也有很大的意义，因为其中体现了中国古代智慧的艺术家们和人民对人生、艺术、自然山水世界三者关系的思考。
The morals concern is multiplayer because of human multiple existence.
人的多重存在使道德关怀的动机具有多层次性。
For them, it would have been unimaginable that a whole country could go out of existence because of human-induced climate change.
他们大概无法想象一整个国家会因为人为的气候变迁而消失。
The life and existence of the human race are threatened because of the deteriorating ecological environment.
生态环境日渐恶化，人类生活、生存、生命都受到巨大威胁。
That is because its existence has a great harm to human beings' health, economy as well as the environment.
这是因为它的存在有很大的危害人类的健康，经济以及环境。
That is because its existence has a great harm to human beings' health, economy as well as the environment.
这是因为它的存在有很大的危害人类的健康，经济以及环境。
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