| 摘要 |
A swing includes an annular track that carries a pair of moveable trolleys. Suspended from the trolleys by flexible suspension members is a support member, such as a swing seat. The support member may be moved to any desired position by moving the trolleys about the track, whereupon the trolleys may be locked in position. Once locked in the desired position, a user seated upon the support member is able to swing back and forth via the flexible suspension members.
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