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The next time you stand at the supermarket checkout, spare a thought for the farmers who helped fill your shopping basket as life is hard for them right now.

下次你站在超市收银台前的时候，想想那些让你能把购物篮装满的农民，因为他们现在的生活很艰难。

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We could generate a customer object for each customer who will shop during the day, and assign each one an appropriate checkout time.

我们可以为一天中将要购物的每位顾客生成顾客对象，并为每位顾客分配相应的付款时间。

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One of the next big things was Radio-frequency identification (RFID) contactless payment technology, which was said to provide a simple method of payment that could reduce time spent in checkout lines.

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The next time you are at the supermarket checkout, say no to your loaf of bread being put into another plastic bag.

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Every time you set one down at the checkout stand, chances are you are leaving some critters behind for the next bag to pick up.

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