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Lok Lok (諾諾) and Lily (莉莉) are from the future, and they love inventing! They took part in a time-traveling learning journey to a refugee camp in Africa 60 years ago.
There were no high-tech gadgets there, but they discovered a plastic bucket that turned dirty water into drinking water, a toilet that generates electricity, and a pile of earthworms that eats poop.
What are these amazing inventions? And what are they used for?
Parents are often worried that their children are addicted to screens and cell phones, but also understand the importance of technology for the future. How do you balance these two?
"The Best Invention" is a story that highlights the hard problems of the world, to spark young reader's interest in using technological minds and ingenuity to create "inventions" to help solve them.