adj.不同时存在(或发生)的，非共时的

The asynchronous nature of the JavaScript language allows multiple operations to run independently without waiting for each other to complete.
JavaScript语言的异步特性允许多个操作独立运行，无需互相等待完成。
Asynchronous programming is crucial in handling I/O-bound tasks where we can’t afford to block the execution thread.
在处理I/O密集型任务时，异步编程至关重要，因为这时我们无法承受阻塞执行线程的情况。
In Node.js, callbacks are used to handle asynchronous events and avoid blocking the event loop.
在Node.js中，回调函数用于处理异步事件，以避免阻塞事件循环。
AJAX (Asynchronous JavaScript and XML) enables web applications to send and retrieve data asynchronously from the server without reloading the entire page.
AJAX（异步JavaScript和XML）使Web应用程序能够在不重新加载整个页面的情况下与服务器异步发送和检索数据。
Web workers provide a way to execute scripts asynchronously, allowing complex calculations to be performed in the background without affecting the user interface.
Web Workers提供了一种异步执行脚本的方法，可以在后台进行复杂的计算而不影响用户界面。
We designed our system to use asynchronous messaging for communication between services to improve scalability and fault tolerance.
我们设计系统时采用了异步消息传递机制来实现服务间的通信，以提高可扩展性和容错性。
The library uses an asynchronous API, which means that function calls don't wait for responses but instead provide a callback mechanism.
这个库使用了异步API，这意味着函数调用不会等待响应，而是提供了回调机制。
When using asynchronous functions, you must often handle promises or async/await syntax to manage the flow of your code.
使用异步函数时，通常需要处理Promise或async/await语法来管理代码流程。
With asynchronous processing, the server can continue to handle other requests while it's waiting for a slow operation to finish.
通过异步处理，服务器在等待慢速操作完成的同时可以继续处理其他请求。
This framework supports asynchronous iteration over large datasets, making it ideal for big data processing.
该框架支持对大型数据集进行异步迭代，使其成为大数据处理的理想选择。