12视频豆瓣8.5
1视频
1视频豆瓣4.1
2视频豆瓣5.6
3视频
5视频
聚苯乙烯表面的特写镜头,可以看到组成它的小球的纹理。
Very close shot of a polystyrene surface, seeing the texture of the small balls that make it up.
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