地球上的生命将无法延续,除非人口增长得到控制。
Life on Earth will become unsustainable unless population growth is held in check.
自1992年,美国国会计划在未来10年里每年为美国国家航空航天局投入1,000万美元,用于彻底搜寻外星生命体以来,搜寻的规模开始大幅增长。
The scale of the searches has been increased dramatically since 1992, when the US Congress voted NASA $10 million per year for ten years to conduct a thorough search for extra-terrestrial life.
在他生命的头几十年里,他遇到了一些重大的社会事件,并且快速增长的人口使食物供应无法一直维持。
The first few decades of his life were met with major social events, and a rapidly growing population that made food supply not last all the time.
And we might be attracted to the thought that the value of life is increased by its very preciousness.
我们可能会被这种想法所吸引,那就是生命的价值是因为它的珍贵而增长的。
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