Renminbi traveller's checks

例句：

1. 1. The currency exchange is the most convenient way to travel in China.
   货币兑换是在中国旅行最方便的方式。
2. 2. The Chinese government has been promoting the Renminbi as a stronger currency.
   中国政府一直在推动人民币作为更强的货币。
3. 3. The Renminbi's value has been increasing steadily since 2002.
   自2002年以来，人民币的价值一直在稳步上升。