Inside a Treadmill
0
0
4,143 Lượt xem·
10/23/23
Trong
Discovery
A treadmill s belt glides around two twenty-six pound steel rollers. Rubber bumpers act as shock absorbers as the feet pound down o the belt. Machines: How They Work THURSDAYS @ 10/9C ...
Cho xem nhiều hơn
0 Bình luận
sort Sắp xếp theo
