Several countries, meanwhile, have developed ID systems at the national level.
很多国家现在都建立了国家水平上的ID系统。
You need both systems to recognize the same ID.
您需要两个系统都能识别相同的ID。
When WI was first released, there were already many user ID and password systems.
WI首次发布时，已经存在很多用户ID和密码系统。
Some applications already had ID and password systems set up before IIPx.
有些应用程序在采用IIPx前已经具有ID和密码系统。
Some applications already had ID and password systems set up before IIPx.
有些应用程序在采用IIPx前已经具有ID和密码系统。
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