9视频豆瓣6.1
4视频
20视频豆瓣6.8
6视频豆瓣6.1
13视频豆瓣7.0
30视频豆瓣8.0
豆瓣6.0
一名男子用扳手组装一架小型精密自制无人机的螺旋桨的近景。
Close view of the hands of a man assembling the propellers of a small and sophisticated homemade drone with a wrench.
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