alecost

例句：

1. 1.The project's high cost is a major concern for the company.
   这个项目的高成本是公司的主要担忧。
2. 2. He paid a lot of money to buy the car, so he was very upset about the high cost.
   他花了很多钱买这辆车，所以对高昂的费用感到非常沮丧。
3. 3.The cost of living in this area is quite high compared to other places.
   与其他地方相比，这个地区的生活费相当高。