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# 600M multilingual TDT，详情可参考爱思助手
DFA matching loop，更多细节参见体育直播
After moving the Infra code away, Business-Modules will be free from untestable code. That design decision brings us testability, so we are able to fully test all the complex business logic via the Business-Module’s public API alone. As a side effect, we also got Separation of Concerns with its benefits.