学习一种外语必须了解这种语言所承载的文化。

To learn a foreign language well, one must understand the culture that it contains.

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当学习一种外语时，重要的是要有一个良好的开端。

When studying a foreign language, it is important to make a good beginning.

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学习一种外语，要求学生全面掌握听、说、读、写等四项技能。

Learning a foreign language well means being proficient in listening, speaking, reading, and writing, all inseparable from vocabulary.

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