We also added three public methods that retrieve the size (i.e., the number of properties defined), retrieve a single element in the map, and update the map with a new element, respectively.

我们同时加入了3个公有方法来获取大小(例如，定义的属性个数)，获取map中的元素，以及更新map中对应的元素等。

youdao

You cannot add more security methods. The maximum number of security methods have already been added.

您不能添加更多的安全措施。 已经添加了最大数目的安全措施。

youdao

She added that this protection generates a number of benefits, and also referred to the methods that can be used for effective implementation.

UNESCO: Underwater Cultural Heritage