正在播放:回声定位的计算公式
回声定位的计算公式
  • 回声定位的计算公式

  • 主演: 菲欧娜·戈登  扎克瑞·奈顿 
  • 状态:4K
  • 导演:彼得·斯戴宾斯
  • 类型:科幻片
  • 简介:This is a cave located on the edge of a cliff. It is close to the east and has plenty of light. The cave is bright all year round. From the outside, it doesn't look like much. After walking in, you feel that this cave is not that big.