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.
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。
They are made in 10 minutes, used in 20 minutes and normally remain on the earth for over 100 years since they are hard to be broken down.
它们在10分钟内制成,在20分钟内使用完毕,但由于很难被降解,它们通常会在地球上残留100年以上。
Today his hobby has developed into the website postcrossing.com, a social network that has grown to 575,217 registered users in 214 countries and regions since he started it 10 years ago.
如今,他的这个爱好已经发展成了 Postcrossing.com 这个社交网站,自从10年前他创建这个网站以来,已经有来自214个国家和地区的575217名注册用户。
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