5视频豆瓣9.2
1视频豆瓣8.9
10视频
6视频
7视频豆瓣7.5
液体中小气泡的照片,在深红色背景下显微镜下观察,每个气泡缓慢移动。
Shot of small bubbles in a liquid, viewed microscopically against a deep red background, while each bubble slowly moving.
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