Many researchers have stated that motivation and attitudes are essential factors in second language acquisition.

许多研究者都认为动机和态度是第二语言习得中非常必要的要素。

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Motivation is a very powerful factor in second language acquisition.

动机在第二外语习得理论中占有非常重要的一席之地。

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Viewed as a key factor that influences English learning effect, motivation has captured great attention of language acquisition researchers.

学习动机作为影响英语学习效果的关键因素，引起了语言习得研究者的较大关注。

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