; Y0 j- @$ Q$ ^6 d+ O. P5 Q. ?, @ - _7 G6 R1 C1 K n% u* d* i If your towing vehicle is an SUV, it must be equipped with a hard top.+ _: P$ S# B) b* \: u1 b4 z
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hard top是个什么东西啊? $ s s, d/ z9 v1 v# M还有trailer的灯是怎么连的? / r7 G! x9 n/ O% W/ `0 Y: Z* j3 B$ i$ a
有木有热心的同志介绍一下这方面的情况啊. 不胜感激.