Definition: the amount of money that you need to buy or do something Level: A2
建筑材料成本已经上涨。
The ___cost of building materials has risen.
这艘游轮的建造成本为4亿美元。
The cruise ship was built at a ___cost of $400 million.
软件包含在内，无额外费用。
Software is included at no extra ___cost.
