翻译理论来源于翻译实践并对训练学生的翻译技能有一定的指导作用。
Translation theory comes from translation practice and plays an important role in training students' translation skills.
有效性教学理论对实践具有强大的指导作用。
The effective teaching theory has strong guidance functions to practice.
伟大的理论来自伟大的实践,同时对实践具有指导作用。
Great theory comes from great practice and plays an important role in guiding practice.
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