地球表面5.1亿平方公里。陆地只占29%,即0.15亿平方公里。
510 million square kilometers covers the surface of the earth of which land takes only 29%, that is 15 million square kilometers.
70亿人口,人均占地约20平方米。去掉不毛之地70%,大约5平方米土地养活一个人。
7 billion covers an area of about 20 square meters each. 70% of the barren taken out of account, about 5 square metres of land is feeding a person.
5平方米土地能养活一个人吗?
Can the land of 5 square meters feed a person?
诚然,人生只是一个过程。从生到死这个程序是被制定的。愚人、智人都无能为力。多数人活一天算一天,只有极少数人忧心忡忡。一切都在自然发生,当然,结局也尽在不言中。因为,种豆得豆,种瓜得瓜。
Admittedly, life is but a process. As this program from birth to death has been made, both the foolish and the wise can do noting. Most people live day to day; only a few people are worried. Everything naturally happens, of course, and the end seems to be without saying, because you reap as you sow.
不过,在求生的努力上,人类的确不遗余力。林立的高楼大厦似乎缓解了一些占地问题;亩产粮食产量也在不断攀高;高科技种植物越来越多。
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2020-09-15
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