essential convergence

例句：

1. 1. The study of economics is essential for understanding the world's economic systems.
   经济学研究对于理解世界经济体系至关重要。
2. 2. The company's strategy was crucial in its ability to compete in the market.
   该公司的战略在市场竞争中起到了关键作用。
3. 3. The convergence of technology and culture has led to a new era of innovation.
   科技与文化的结合引领了创新的新纪元。