The groups often sport a similarly coloured baseball cap, making them even more readily identifiable, and many also carry their own umbrellas to shade themselves from the sun.
旅游团体常常戴着同样颜色的棒球帽，以令人更易辨别，还有一些人会打着雨伞来遮蔽阳光。
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As sports are incredibly popular on TV, having your company name on a shirt or cap means that millions or ever billions will associate your company with the sport.