紅小橋
https://images.plurk.com/4Gm9s8m4E5EE49tHbIVNLf.jpg https://images.plurk.com/1LHEUTj5gnVAlrQzYiv2FB.jpg https://images.plurk.com/5QAn7wrWzUKdP23bCO96uE.jpg https://images.plurk.com/6a6yZB37BCIqI1o4oxYrZu.jpg https://images.plurk.com/5ygYyWHOGdXQSQu5LdKCwK.jpg https://images.plurk.com/7ALcVBND7iirdA78lXaYof.jpg https://images.plurk.com/Iupk83evrjTSvxHZQV8T4.jpg https://images.plurk.com/3wd5tfJgqrAByCbsbXTu88.jpg
第一次知道（已知用火）