获得必要的执照和许可证也是前提条件，或许还需要调研去决定哪些是必须的。
Securing the necessary licenses and permits is also a precondition and may require research to determine what is necessary.
获得必要的执照和许可证也是前提条件，或许还需要调研去决定哪些是必须的。
Securing the necessary licenses and permits is also a precondition and may require research to determine what is necessary.
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