12 年前
视频简介
Ten-year-old Gloria and her recently widowed grandfather Bud befriend a mysterious reindeer when the family gather for Christmas. Bud comes to believe that Prancer may actually be magical, but Gloria fears his theory will send him straight to a retirement home.。主人公魏建仓带领他的水下无人机设计团队从设计理念，到手绘成型，三维建模打印雏形，最后进行海水中试验的全过程。。
标签
青春
