concurrency

concurrency的音标为[kənˈrekəns]，基本翻译为“同时发生，并发性”，速记技巧为“con共同+rec重复+nce动作+性”。

Concurrency这个词的词源可以追溯到拉丁语concursus，意为“聚集，同时发生”。它的变化形式包括名词concurrence（同时发生的事物）和动词concur（同时发生）。

相关单词：

1. parallelism（平行） - 这个词表示两条线或路径之间的相对位置，同时也引申出相似或同时发生的意思。

2. simultaneity（同时性） - 这个词表示两个或多个事件在同一时间发生。

3. concord（和谐） - 这个词表示一致或协调，同时也含有同时发生的意思。

4. coexistence（共存） - 这个词表示两个或多个事物在同一环境下同时存在。

5. co-operation（合作） - 这个词表示共同工作或行动，同时也含有同时发生的意思。

以上这些单词都与concurrency这个词有密切的联系，它们都表示同时发生、相似、和谐、共存或合作等含义。同时，这些单词也反映了人类对于同时发生、相似、和谐等概念的不断探索和思考。

常用短语：

1. concurrency of events 事件并发

2. concurrency of tasks 任务并发

3. concurrent processing 并行处理

4. concurrent execution 并行执行

5. concurrent programming 并行编程

6. concurrent systems 并行系统

7. concurrent computing 并行计算

双语句例：

1. While the programs are running concurrently, we need to ensure synchronization.

同时运行多个程序时，我们需要确保同步。

2. The two tasks are running concurrently, and we need to manage the resources carefully.

两个任务同时运行，我们需要小心管理资源。

3. The computer system supports concurrent operations, which greatly improves efficiency.

计算机系统支持并发操作，大大提高了效率。

4. The concurrent execution of multiple tasks requires careful planning and coordination.

多个任务的同时执行需要仔细的计划和协调。

5. Concurrent programming is a challenging task, which requires advanced skills and knowledge.

并行编程是一项具有挑战性的任务，需要高级技能和知识。

6. We need to ensure that the data is properly synchronized during concurrent operations.

在并发操作中，我们需要确保数据得到适当的同步。

7. The concurrent use of multiple resources by different tasks can lead to conflicts and bottlenecks.

不同任务对多种资源的并发使用可能导致冲突和瓶颈。

英文小作文：

Parallel computing has become increasingly important in today"s world, where multiple tasks need to be completed simultaneously. Concurrency is a key concept in parallel computing, which means that multiple tasks can run simultaneously without interfering with each other. However, it also requires careful planning and coordination to ensure that the resources are properly managed and the data is properly synchronized. In this era of digitalization and automation, parallel computing has become a crucial tool for achieving greater efficiency and productivity. It can help us to tackle complex problems and accelerate the pace of innovation in various fields, such as science, engineering, and business. Therefore, it is essential to master the skills and knowledge of concurrent computing to stay ahead in this rapidly changing world.