| 摘要 |
A trailer has a base and a hitch for connecting the trailer to vehicles. The trailer also has standard wheels at a standard wheel axle left end and a standard wheel axle right end, and can include a castor wheel positioned underneath the base. The standard wheels and the castor wheel provide three support points for the trailer, so the trailer can rest on only the standard wheels and castor wheel. The trailer can be used similar to a cart by moving the trailer on the standard wheels and the castor wheel. The trailer can also include handles, which can allow a user to lift one end and use the trailer similar to a wheelbarrow.
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