It helped improve their speaking skills. It helped them to improve their speaking. 2、对象的区别 boost、improve 和 enhance 的对象也有所不同。 boost 和 enhance 更多地强调对某个事物的整体提高，而 improve 更多地强调对某个事物的具体方面进行改进。.
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Enhance用法及搭配见下： 读音：英 [ɪnˈhɑːns] 美 [ɪnˈhæns] 。 vt.增强;提高;增进。 第三人称单数： enhances现在分词： enhancing过去式： enhanced过去分词： enhanced。 派生词：.
It helped them improve their speaking skills.
