One day a girl and her dog was walking along a river . Suddenly she heard someome was calling for help . She and her dog came near the river and saw a boy was drowning in the river . She asked her dog to jumped the river to save the boy at once . Then the boy was taken onto the bank . The boy was saved at last . He thanked the girl and the dog as well . 祝学习进步，天指蒸认天快敢饥乐！万事如意，满意请采纳！兔挎谢谢！：）