costs

costs的音标是[kɒstz]，基本翻译是“费用；代价；成本；成本价”。速记技巧是：可以与不同的单词搭配组成不同的词组，如with costs、costs of、costs of goods等。

costs这个词的词源可以追溯到拉丁语“costare”，意为“花费”。它的变化形式包括复数形式“costs”和过去式“cost”。

相关单词：

1. “cost-effective”（成本效益的）：这个词是由“cost”（成本）和“effective”（有效的）组成的，用来形容在成本和效果之间的平衡。

2. “revenue”（收入）：这个词来源于古英语，意为“回馈”或“回报”，后来引申为“收入”。

3. “expense”（开支）：这个词来源于拉丁语“expergere”，意为“向外推”，后来引申为“开支”。

4. “overhead”（间接费用）：这个词来源于法语，表示“上面”，引申为间接费用。

5. “outlay”（支出）：这个词来源于英语，意为“花费”或“支出”。

6. “invest”（投资）：这个词来源于拉丁语，意为“投入”或“投资于”。

7. “expense-saving”（节省开支）：这个词是由“expense”（开支）和“saving”（节省）组成的，用来形容通过节省开支来达到某种目的。

8. “cost-benefit analysis”（成本效益分析）：这个词是由“cost”（成本）和“benefit”（利益）组成的，用来分析某项行动的成本和收益。

9. “cost-down”（成本降低）：这个词是由“cost”（成本）和“down”（下降）组成的，用来形容通过各种方法来降低成本。

10. “budget”（预算）：这个词来源于法语，意为“篮子”或“预算案”，后来引申为政府或组织对财务的规划和管理。

常用短语：

1. cost sb. money

花费某人钱财

例句：The surgery cost him a lot of money, but it was worth it.

2. cost sb. time

花费某人时间

例句：The research took me months of sleepless nights.

3. cost the earth

意义重大

例句：This decision cost the earth for our family, but it was the right one.

4. cost money to do

做某事需要花钱

例句：Running a business costs money, and it"s not easy.

5. cost less than expected

比预期花费少

例句：The new car cost less than I expected.

6. cost a fortune

花费巨资

例句：Buying a house can cost a fortune, especially if you want to live in the city.

7. be worth the cost

值得付出代价

例句：I think it"s worth the cost to learn a new language.

英文小作文：

The Cost of Success

Success often comes at a price, but it"s worth it. To achieve our goals, we need to make sacrifices and put in effort, and sometimes that means spending money or time. However, when we reach our goals, we realize that the cost was worth it. Success brings happiness, satisfaction, and a sense of achievement that nothing else can give us. Therefore, we should always remember that success is worth the cost.