23 年前
视频简介
Interviews with experts and relatives fuel this investigative docuseries about the tragic 2017 disappearance of a military submarine that shook the world.。描写少先队员为支援农业机械化，在暑假里捡粮捡铁，集资购买拖拉机。。
标签
伦理
儿童
儿童历险
战斗