最后，研究者推测，也许人类只是用他们的好听力去促进他们的记忆容量以及他们的学习能力，但是仍然需要更多的研究去探索这个难题。
More likely, the researchers speculate, humans use their fine hearing to facilitate working memory and learning capa bilities, but more research is needed to explore this puzzle.
家教固然能促进学习，学习者自身才起主动作用 。
The tutor is the facilitator of learning, while the learner is active.
并讨论了元认知在外语自主学习中的作用，及如何培养元认知能力来促进学习者的自主学习能力，有效提高学习效率，以达到教育要求。
And its function in autonomous learning of foreign languages and how to cultivate the ability are discussed for promoting learner autonomy, enhance learning efficiency to meet education's requirement.
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