有的人认为这比在地上骑自行车难多了，在水上骑自行车真的很不容易。Yǒu de rén rènwéi zhè bǐ zài dìshàng qí zìxíngchē nán duō le, zài shuǐshàng qí zìxíngchē zhēnde hěn bù róngyì. Some people think it’s much harder than cycling on land. Riding a bike on the water is really not easy.