And the Good Morning Britain （这是电视节目的名字 ）presenter says she's been able to put a lot of what she's learnt into practice in her own home, preparing meals for sons, Sam, 14, Finn, 13, and Jack, 11.

上文讲到这个电视节目教观众做饭，这句话说这个主持人，也能够学以致用。请问，has been able to 在这里并没有加for时间状语，那么这个词组是理解为瞬间动词，还是延续性动词（理解为，不加for的延续性动词，未完成用法的特例）？