必须勤学苦练，才能掌握一门外国语的翻译：To study and train hard, to master a foreign language 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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To study and train hard, to master a foreign language

Must study diligently and practice hard, can grasp a foreign language

It must be studious, can master one language

To study and train hard, to master a foreign language