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If your towing vehicle is an SUV, it must be equipped with a hard top., G9 p1 m, \) c* u* D! J7 x
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hard top是个什么东西啊?; l/ y6 G( r) y
还有trailer的灯是怎么连的? 0 T7 E: S; H4 E2 v% o: i1 X% h) d" g* M
有木有热心的同志介绍一下这方面的情况啊. 不胜感激.