An obvious gain from an asynchronous, event-driven design is that many operations waiting for external services can be executed in parallel as long as no data dependency exists between them.

事件驱动异步设计的一个明显优点就是，如果大量等待外部服务的操作之间没有数据依赖关系，则可以并行执行这些操作。

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Just how many schools will feel the self-confidence to go down this route, for no very obvious gain, remains to be seen.

BBC: NEWS | UK | Education | Analysis: school reforms