我看到有两句话，第一是Yet the spread of this wonder crop has come at aprice。中文意思是这种神奇作物的传播要付出代价。
第2句是Fame comes at a price。成名要付出代价。
我在字典里查at a price是一个固定短语使用方法，表示价格昂贵或是要付出代价。在这两句中at a price前面都有单词come，想请教come是和at a price一同构成固定短语格式吗？ Come在这里表达什么含义？
at a price
cosplayting a lot of money 以高价；花大钱
You can buy strawberries all year round, but at a price.草莓一年到头都买得到，不过非常贵。
involving sth unpleasant 付代价
He'll help you—at a price!他会帮你的，但要付出代价！
come at a price to include disadvantages in order to get what you want.
The company's success was made possible by the country's rulers, but their support comes at a price.
Usage notes: sometimes used without come:
Following the recommendation would have increased teamwork, but at a price.