你是否有一双便宜的？
Since it's just assembling molecules, presumably it would be cheaper for this thing to make you a pair of diamond earrings than a hot dog, since fewer molecules and less energy would be required.
既然只是分子的组装，那么可以推出，用这个机器做一对钻石耳环会比做一只热狗便宜，因为做前者用的分子和能量更少。
Managing a single network is easier and cheaper than struggling to cope with multiple networks, each geared for a specific service, such as the "twisted-pair" wires upon which voice calls travel.
运营多个网络并使每个网络针对某种特定服务，例如用于传送语音电话的双绞线，难度大，费用高，与此相比，管理单个网络相对容易而且费用偏低。
So if one store charges a price for a pair of sports shoes, the consumer could go to the store along the street to compare prices for the exactly the same item, and buy the cheaper of the two.
所以，如果一家商店对一双运动鞋作出标价，消费者会沿街去另一家商店比较同一双鞋的价格，然后选择其一购买。
I can't afford a pair of Nike, too expensive. Get me something cheaper, please.
耐克鞋太贵了。我买不起。我看看便宜的吧。
It is better to take a pair of expensive shoes instead of a few pairs of cheaper ones.
与其买很多双廉价鞋子，不如备一双贵点的好鞋。
They may be wet, even a bit briny, and it might be hard to find a matching pair, but you won't find Nike Inc. shoes cheaper anywhere.
也许是湿的，可能还有点咸，而且要凑成一双还有点困难。不过，世界上也许再也找不着比这更便宜的耐克运动鞋了。
They may be wet, even a bit briny, and it might be hard to find a matching pair, but you won't find Nike Inc. shoes cheaper anywhere.
也许是湿的，可能还有点咸，而且要凑成一双还有点困难。不过，世界上也许再也找不着比这更便宜的耐克运动鞋了。
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