作 者:Bourgeois 主 题:探险、动作、拯救类,科幻类,庆祝(生日、节日等)
作 者:Beer, Hans de , Marianne Marte 主 题:动物 - 农场动物,幽默、搞笑故事类,睡前故事
作 者:Whybrow, Ian 主 题:动物 - 农场动物,概念(数字、颜色、形状等)
作 者:Whybrow, Ian 主 题:动物 - 农场动物,概念(数字、颜色、形状等)
作 者:Whybrow, Ian 主 题:动物 - 农场动物,概念(数字、颜色、形状等)
We all do it. We usually don't like to talk about it, but going to the toilet is a natural and necessary part of our lives. We couldn't live without poo because there are some parts of our food that contain no nutrients that can be used by our bodies for energy, growth or health, and those parts have to be ejected. But poo can also be used to power our cars, heat our homes and help grow our crops. Learn why and how animals and people produce poo, and about the many marvellous uses for this misunderstood substance.
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