| 摘要 |
A land vehicle includes a first floor, a second floor, a first support member, a second support member, and a gear. The first support may be coupled to the land vehicle and sloped relative to the first floor. The second support member may be supported by the first support member and coupled to the second floor. The second support member may include an engaging portion. The gear may cooperate with the engaging portion to move the second support member relative to the first support member and thus move the second floor between a first position where the second floor is positioned adjacent to the first floor and a second position where the second floor is substantially level with the first floor.
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