设计电子词典程序，能够进行查询和词典维护。

Design electronic dictionary program, be able to query and dictionary maintenance.

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getMeanings 方法依赖于 JADT Dictionary 对象的 getMeaning 方法从底层词典提供程序中查找给定单词的定义。

The getMeanings method relies on the JADT Dictionary object’s getMeaning method to look up the definitions of a provided word from the underlying dictionary provider.

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词典提供程序只要实现了驱动程序端接口，API 就允许将其作为 JADT 提供程序。

The API allows a dictionary provider to act as a JADT provider by implementing a driver-side interface.

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