Amazon has another notification service, Simple Queue service (SQS), using a polling-based approach to messaging.

亚马逊还有另一项通知服务，称为简单队列服务，简称SQS，采用轮询的方式处理消息。

youdao

This month, I introduce a cloud-based alternative to such labor-intensive messaging: Amazon's Simple Queue Service (SQS).

本月我对这种劳动密集型消息传送引入了一种基于云计算的替代方案：Amazon的Simple Queue Service (SQS)。

youdao

The Simple Queue service - a service for moving and queuing data between distributed components of applications performing different tasks.

简单队列服务——该服务可以在执行各项任务的分布式应用组件间对数据进行移动和排队。

youdao

Examples of the services offered by Amazon Web Services are Amazon Elastic Compute Cloud (Amazon EC2), Amazon Simple Storage Service (Amazon S3), Amazon SimpleDB, Amazon Simple Queue Service (Amazon SQS), Amazon Flexible Payments Service (Amazon FPS), Amazon Mechanical Turk and Amazon CloudFront.

ENGADGET: Kindle is the biggest selling item on Amazon, bests sliced bread