expiration

expiration的音标为：[ɪkˈspɪərɪə(r)]，基本翻译为“终止；期满；停止”，速记技巧为：“exp”是“expire”的缩写，去掉“r”就是“expir”。

"expiration"这个词的词源可以追溯到拉丁语"expire"和"expirare"，这两个词都表示“呼气”或“呼吸停止”。在英语中，"expiration"的意思是“结束，终止”，通常用于描述到期、失效或终止的情形。

变化形式：

1. 过去式：expired

2. 过去分词：expired

3. 现在分词：expiring

相关单词：

1. "expire"（到期）：这个词与"expiration"有着相似的含义，表示期限到期或终止。

2. "expire at"（在某时到期）：表示某个期限在某个时间点到期。

3. "expire in"（在某时间内到期）：表示某个期限在一段时间内到期。

4. "expire on"（以某事为期限）：表示以某事为终止或失效的期限。

5. "expirement"（过期）：这个词是"expiration"的俚语形式，表示某个物品或文件已经过期。

6. "expiry"（到期）：这个词通常用于法律文件或合同中，表示某个期限的终止。

7. "expiry date"（有效期）：这是一个常用的英语短语，表示某个物品或文件的有效期限。

8. "expiremental"（实验性的）：这个词通常用于描述某个物品或技术仍处于实验阶段，尚未经过充分测试和验证。

9. "expiry time"（失效时间）：这个词用于描述某个物品或文件的终止时间，即何时会失效或过期。

10. "expiry date and time"（有效期和截止时间）：这个词组通常用于描述某个合同或协议的有效期限和截止时间。

常用短语：

1. expiration date

2. expiration date and time

3. expiration date and month

4. expiration date and year

5. expire

6. expired

7. expiration policy

例句：

1. The product"s expiration date is December 31st.

2. The card expired two months ago and cannot be used anymore.

3. The policy will expire in two years.

4. The stock certificate expired years ago and is now worthless.

5. The password has expired, please reset it.

6. Your account has expired, please login again.

7. The store"s business license has expired and they are now operating illegally.

英文小作文：

标题：Expiration of Contracts and Documents

In our daily lives, we encounter various contracts and documents that have expiration dates. These documents, such as licenses, stocks, bonds, passwords, and insurance policies, must be renewed or replaced when they expire to maintain their validity and legitimacy. Expiration of contracts and documents can have significant consequences for individuals and businesses, as they may lose their legal protections or entitlements. Therefore, it is crucial to be aware of the expiration dates of these documents and to take appropriate action in a timely manner to avoid any potential issues.