之后，听众可以问一些不具威胁性的问题来阐明说话者的立场。
Afterward, the listener can ask nonthreatening questions to clarify the speaker's position.
当应用程序是全新的或开发者不具有很多数据库开发经验时，该方法非常有用。
This is very useful when an application is brand new or the developer does not have much experience with databases.
服务的提供者可能还不具备公开服务的能力。
The service provider may not have the sophistication of service exposure yet.
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