Granted, these producers' savings probably translate into lower prices at the grocery store, but how many consumers make that mental connection at the checkout counter?
诚然，这些生产商节省的制造成本可能会使得杂货店里的商品价格更低，但有多少消费者会在收银台前联想到这些呢？
Suppose you are in a long line at checkout counter 1 — you can roughly guess how long it would take to move up in that line.
假设您排在1号付款台前的长队中，您可以粗略地估算出大概需要多久时间才能排到自己付款。
Then another cashier opens checkout counter 3 and waves to the shopper who was in front of you in the first line before you moved over.
接着又有一名收银员打开了3 号付款台，并挥手示意第一队排在您前面的购物者到 3 号付款台排队。
Imagine that you were only allowed to fly on one airline, or take a single route to work, or use one designated checkout counter at the grocery store.
想象一下，你只能使用一家航空公司，或者只走一条路去工作，或者在杂货店只能使用一个指定的收银台。
I remember thinking about a middle-aged man standing at a checkout counter. Something set him apart.
我想起一个站在收银台旁边的中年男士，有一些东西使他显得与众不同。
If you find that the line moves slowly and see that another cashier is coming to checkout counter 4 to open it for business, you would quickly take your cart to that counter (see Figure 1).
如果您发现这条队伍移动缓慢，而且此时看到一名收银员走向4号付款台打开机器准备工作，那您一定会推着购物车快速地跑到4号付款台(请参见图1)。
If you find that the line moves slowly and see that another cashier is coming to checkout counter 4 to open it for business, you would quickly take your cart to that counter (see Figure 1).
如果您发现这条队伍移动缓慢，而且此时看到一名收银员走向4号付款台打开机器准备工作，那您一定会推着购物车快速地跑到4号付款台(请参见图1)。
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