所有的理论都是源于实践。
所有的理论都来源于实践，并反过来为实践服务。
All theories originate from practice and in turn serve practice.
理论源于实践，最终服务于实践。
理论源于实践，这是尽人皆知的。
我们应当坚持理论来源于实践的观点。
理论来源于实践，又反过来指导实践。
任何理论都来源于实践，反过来为实践服务。
All theories originate from practice and in turn serve practice.
职工持股计划的理论和实践源于西方国家。
The theory and practice of Employee Stock Ownership plan originated from Western countries.
理论来源于实践又反过来为实践服务。
理论源于实践，最终又必将指导实践，并由实践来检验。
Theory comes from practice, which will eventually guide practice, and be tested by practice.
理论来源于实践。
理论源于实践又必将指导实践，特别是在经济领域。
Theories derive from practice as well as guide them, especially in the economic field.
理论源于实践又必将指导实践，特别是在经济领域。
Theories derive from practice as well as guide them, especially in the economic field.
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