An object (mostly spherical or cylindrical) in contact with another object on the changing face move: wheel ~.
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gǔn dòng
With the "Rolling 2"
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No. 3
Rotation; response. Ming Tu Long "test disc device service 笺 other personal things rolling stool": "bench chisel orifices live in equipment, foot kick shaft, rolling contacts." Ba Jin "destroyed" the 19th chapter: "immediately 'he' bottom Only half of the face bloody head rolling in the air, two blood-red eyes of his were wide, as if he was afraid of dying in general to blame. "Yang Shuo" Tongguan Night ":" A soft, familiar words rolling in my ears. "