复杂事件处理的优势之一是，能够将规则应用到所定义事件内出现的多个事件。
One of the advantages of complex event processing is that it can apply rules to multiple events that occur within a defined time period.
运动员们仍然要想方设法取得优势，以胜过其他选手。不幸的是，有时候也会不遵守规则。
Athletes also still try to find an advantage to give a better performance than all other competitors, sometimes, unfortunately, not always following the rules.
POSIX 线程编程有诸多优势，但是如果您不明确一些基本规则，就有可能编写一些难以调试的代码并造成内存泄漏。
POSIX thread programming has many benefits, but if you're not clear about some basic rules, you run the risk of writing hard-to-debug code and creating memory leaks.
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