在法国，信用卡公司创建了 EMV，部分原因是电话垄断的效率低得令人抓狂，而且价格昂贵。

In France, card companies created EMV in part because the telephone monopoly was so maddeningly inefficient and expensive.

youdao

好的水果冬天难得见到，而且价格昂贵。

Good fruit is scarce in winter and costs a lot.

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不同类型的激光也能选择性地破坏黑色素细胞而达到脱色作用，不过激光治疗对皮肤很痛，而且价格昂贵。

Different types of lasers are also available to destruct the melanocytes selectively, but this technique can be painful and expensive.

youdao

So, if we want to get more magnesium into the marketplace at an affordable price, not by government edict, what do we have to do?

所以如果我们想把更多的镁,投诸市场，并让它保持在一个不太昂贵的价格，而且不靠政府法令，我们应该怎样做？

麻省理工公开课 - 固态化学导论课程节选