根据短文内容，用适当的词汇完成表格中所缺信息，每空不超过3个词。
Nancy is a girl from the UK. She is studying in Dalian now. She loves shopping with her family on weekends. Nancy thinks supermarkets in the UK are different from those in China.
Many big supermarkets are self-service (自选的) in the UK. When you go to a supermarket, you can take a basket or a handcart(篮子或手推车) and put the things you want to buy in it. You need to wait in line at the cash desk(收银台) and pay for things before you leave. When you are waiting to pay in the supermarket, it's important to wait your turn.
But in China, there are some salesmen or saleswomen around you. When you are buying things, they show their things to you. Sometimes it helps a lot but sometimes it doesn't. When you are paying, you don't have to wait at the cash desk. You can pay by Alipay or Wechat at special machines (特别的机器). Nancy says it's very convenient (方便的).
| Supermarkets in the UK | There are self-service. People put the things they in a basket or a handcart. They need to wait in line and at the cash desk and things before they leave. |
| Supermarkets in China | There are always salesmen or saleswomen . They show people their things all the time. Sometimes it's but sometimes it's not. When you pay for things, you don't wait. You can pay at special machines easily. |