availability

"availability"的音标为[ˌævɪləˈbaɪləti] ，基本翻译为"可获得性；可用性"。速记技巧可以考虑用字母代词的方法，即把单词拆分为"a"（代表“可”）"v"（代表“价”）"i"（代表“能”）"l"（代表“量”）"b"（代表“备”）"l"（代表“量”），连起来就是“可价能备量”。这样就可以快速记住单词的各个组成部分及其含义。

Availability的英文词源：

Availability这个词源自拉丁语，意为“可获得的”、“可用的”。它的词源可以追溯到“可用性”的概念，即某物可以被使用或获取。

变化形式：

Availability作为名词时，其复数形式为availabilities。作为动词时，其过去分词形式为available。

相关单词：

1. availability check：检查某物是否可用。

2. availability list：可用物品清单。

3. unavailable：不可用的，无法获得的。

4. availability zone：可用区域，指一个数据中心内的一组服务器群集，具有相似的性能和可靠性。

5. availability zone group：可用区域组，一组相同可用区域的数据中心群集。

举例说明其在不同语境下的使用：

在云计算环境中，我们经常需要检查特定资源（如存储空间、计算实例等）的availability。如果资源不可用，我们需要采取相应的措施以确保我们的应用程序能够正常运行。

此外，在数据库管理领域，我们经常需要创建和管理availability zone或availability zone group，以确保数据的安全性和可用性。

总的来说，availability这个词在计算机科学和数据库管理领域有着广泛的应用，它体现了我们对资源可用性的关注和追求。

常用短语：

1. availability time 可用时间

2. on-demand availability 按需可用性

3. availability zone 可用区域

4. high availability 高可用性

5. availability-based 可用性基础

6. availability model 可用性模型

7. availability zone isolation 可用区域隔离

例句：

1. The store is available from 9am to 10pm daily.

2. The system is designed for high availability.

3. The availability zone is isolated from other zones to ensure data security.

4. The availability-based approach ensures that the system is always available.

5. The company"s availability model has been constantly improved to meet customer needs.

6. The data center is available 24/7 without any interruptions.

英文小作文：

Title: High Availability in Modern Datacenters

In today"s digital age, high availability has become a crucial requirement for businesses that rely on data centers for critical operations such as cloud computing, data storage, and remote access. To ensure uninterrupted service, data centers have implemented various technologies and strategies to maintain high availability, including availability zones, redundancy of critical components, and continuous monitoring and maintenance.

By isolating different zones and deploying multiple copies of critical systems and components, data centers can minimize the impact of any single point of failure and ensure that critical operations remain available even in the event of a system failure or component malfunction. This approach also helps to reduce downtime and minimize the impact on customers and business operations.

Moreover, continuous monitoring and maintenance plays a crucial role in maintaining high availability in modern data centers. By continuously monitoring system performance and detecting any issues early, data center operators can take appropriate action to mitigate the impact of any potential problems and minimize downtime.

High availability is essential for businesses that rely on data centers for critical operations, as it helps to ensure uninterrupted service and minimize the impact of any potential problems on customers and business operations.