Zhè chǎng zhēnglùn zuìzhōng yǎnbiàn chéng le yī chǎng chōngtū.
This argument eventually evolved into a conflict.
Tips
usage
演变 emphasizes gradual, natural change over time. Often used with 成 (into): 演变成 = evolved into. Compare with 进化 (jìnhuà) which is specifically biological evolution.