在英语中询问两顶帽子的价格可以说："How much do these two hats cost?"
"Cost"这个词来源于拉丁语"constare"，意思是"付出代价，花费"。
一些英文例句并其中文翻译：
"The cost of pving in this city is very high." (生活在这个城市的成本非常高。)
"The cost of the trip was more than I expected." (旅行的花费超出了我的预期。)
"How much does the car cost?" (这辆车要多少钱？)