cost

cost的音标是[kɔːst]，基本翻译是“花费（金钱、时间等），代价”。速记技巧是：字母组合“oost”可以代表“花费”。

cost的英文词源：

cost来自古英语costa，来自原始日耳曼语kussan，意为“代价，花费”。

cost的变化形式：复数形式：costs；过去式：cost；过去分词：cost；现在分词：costing。

相关单词：

1. expense：n. 费用，开支；花费；v. 支付费用。这个词由cost派生而来。

2. outgo：n. 支出，用度；v. 花费。这个词由cost派生而来，表示“花费”的支出或用度。

3. costing：n. 成本计算；v. 计算成本。这个词由cost加上后缀-ing构成，表示“成本计算”的行为。

4. revenue：n. 收入，收益；税收。这个词由re-和-vinue组成，表示“再次获得”的收入或税收。

5. outlay：n. 支出；v. 花费。这个词由out-和-lay组成，表示“花费”的行为。

6. expenditure：n. 开支，支出额。这个词由expend和-iture构成，表示“花费”的开支或支出额。

7. cost-effective：adj. 成本效益高的。这个词由cost和-effective构成，表示“成本效益高”的含义。

8. out-of-pocket：adj. 自己掏钱的；v. 自行支付。这个词由out-of-和pocket构成，表示“自己掏钱”的含义。

9. overheads：n.（企业的）管理费，间接费用；总成本。这个词由overhead构成，表示“管理费”或“间接费用”的总和。

10. capital cost：资本成本。这个词由capital和cost构成，表示资本投资的成本或费用。

常用短语：

1. cost sb. money

2. cost the earth

3. cost a fortune

4. cost time and money

5. it costs me

6. the cost of

7. at what cost

例句：

1. Buying a new car will cost me a lot of money.

2. Building a new house will cost the earth.

3. Saving for a vacation costs a fortune.

4. Building a new stadium cost time and money.

5. I don"t know what the cost of my mistake was.

6. The cost of living has gone up.

7. At what cost does society pay for our safety?

英文小作文：

The Cost of Happiness

Happiness is a complex concept, and its cost varies from person to person. For some, material possessions and wealth are the key to happiness, while for others, it is relationships and personal growth that matter. However, we can all agree that happiness comes at a price, and that price can be high or low, depending on our individual circumstances.

When it comes to material possessions, the cost can be measured in terms of time, energy, and money. Buying a new car or a house requires us to invest in them, often at the expense of other important things in our lives. Similarly, pursuing higher education or career opportunities often requires us to make sacrifices and pay a high price in terms of time and effort.

On the other hand, personal growth and relationships can also have a significant cost. Learning new skills and developing our talents require time and effort, but the benefits can be immense in terms of personal development and self-realization. Building strong relationships with family and friends requires us to put in effort and be understanding, but the rewards are also immense in terms of emotional support and companionship.

In conclusion, the cost of happiness is high or low, depending on our individual circumstances and choices. We should be mindful of the price we pay for pursuing happiness, and make informed decisions that are in line with our values and goals in life.