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美文赏析 3D printers are very hot today.They are being put to all kinds of uses，ranging from creating car models for movies to architectural① models.However，none of these ideas are as shocking as the one suggested by Anjan Contractor，who believes that they will be the key to ending world hunger. According to some experts，world population will increase to 10－12 billion by the end of this century.This means that food will become very expensive and possibly，even out of reach，for billions of people. This is where 3D printing may save the day.Anjan thinks that the only way to solve the problem will be to equip every kitchen with a 3D printer and print out meals from tubes of powder and oil.He believes that these meals with a shelf life of over 30 years would result in less food wastage. More importantly，it would be easier to make food from things that we now do not consider edible②.A great example of that is the protein③ from meat.Most experts believe that as the population grows，the supply is not going to be enough to feed everyone.Anjan believes that we could easily get the same protein from | 
