/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: chengjunhung https://cdn.slidesharecdn.com/profile-photo-chengjunhung-48x48.jpg?cb=1523390844 大家好，我是活蹦亂跳的地理老師洪哆啦。 請大家多多指教。