Well, the last product from the book that I'm showing you is renewable energy -- actually, to show that my first question, if pigs are still used up until the last bit, was still true.
最后，我准备向大家介绍书中的一个产品是可再生能源 -- 这其实回答了我的第一个问题， 猪的各个部位是否都派上了用场，