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| 来源： | Freesound 前往原页面 查看译文 |
| 作者： | IndianaParkWars |
| 许可： | CC-BY 保留署名许可协议 |
| 描述： | Opening a door to a deep stairwell and the low tones that echo throughout the vacuum of space. There are also footsteps going down the stairs. |
| 标签： | footsteps tones low echo stairs opening stairwell door |
| 音频格式 | mp3 |
| 声音时长 | 00:28 |
| 文件大小 | 458.1 KB |
| 比特率 | 1378 kbps |
| 声道 | 立体声 |