To tackle a problem at its roots and clear its source; to carry out fundamental rectification.
为了彻底解决产品质量问题，公司决定正本清源，从原材料采购和生产流程上进行全面整改。
To thoroughly solve the product quality issues, the company decided to tackle the problem at its roots, carrying out a comprehensive overhaul of raw material procurement and production processes.
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