The principal access path to any object in a grid should be either through the Map API or through an EntityManager find() using the object’s primary key.

到网格中任何对象的主要访问方式应该是通过 Map API 或使用对象主键的 EntityManager find() 方法。

youdao

With the Map API, the most appropriate use of the grid is clear: You simply put objects in at an appropriate key and look objects up by the same key.

有了Map API，网格的最合理用法就变得一清二楚：您仅需在合适的键处将对象放入，并使用同一个键查询对象。

youdao

To embed a Google Map in your Grails application, the first thing you need to do is get a free API key.

要将 Google Map 嵌入到 Grails 应用程序中，首先要做的是获得一个免费的 API 密匙。

youdao