4视频豆瓣6.7
33视频豆瓣7.5
7视频豆瓣7.2
6视频豆瓣6.3
8视频
11视频豆瓣5.4
一名男子正在组装一架复杂的自制无人机,然后将其投入飞行,他的手非常近距离地观察。
Man assembling a sophisticated homemade drone, before putting it to fly, in a very close view of his hands.
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