cost的过去式是costed。例句：
1. The repairs to the car costed more than I had expected.
（修理车辆的费用比我预期的要高。）2. The new equipment for the office costed a lot of money.
（办公室的新设备花费了很多钱。）3. The vacation costed us a fortune, but it was worth every penny.
（这次度假花费了我们一大笔钱，但每一分都是值得的。）4. The project costed more time and resources than we had initially estimated.
（这个项目花费了比我们最初估计的更多的时间和资源。）5. The mistake in the design costed the company a significant amount of money to fix.
（设计中的错误使公司花费了大量的资金来修复。）
