货币转换过程中的一个重要缺点是成本，特别是商业上的成本一一转换银行帐户、商店的收银机以及所有的自动贩卖机和停车场的即时收费器等。
One important drawback of the cash changeover is the cost, especially to business - changing bank accounts, shop tills and all the vending machines and parking meters.
能用简单词汇和结构介绍自己，说出个人相关的信息，简单介绍家庭成员以及工作，能在商店、饭店、医院、银行等地用简单的汉语交流；
Use simple vocabulary and grammar structures to introduce yourself, family members and job. Communicate in simple phrases and sentences in shops, restaurants, hospitals and banks, etc.
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