奶牛佩戴 VR 头盔产奶量增加 22%
https://t.co/6IgBCvB6Mi https://video.twimg.com/ext_tw_video/1837114938856230912/pu/vid/avc1/720x1280/IKWqBAEiNnf2q8p7.mp4?tag=12
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