profitability of the import and export enterprises

例句：

1. 1. The company's profitability has improved significantly since the new management took over.
   自从新管理层上任以来，公司的盈利能力有了显著提高。
2. 2. The investment in renewable energy sources is a profitable venture for many companies.
   对许多公司来说，投资可再生能源是一个有利可图的冒险。
3. 3. The new product line has shown high profitability in its first year of operation.
   新产品线在开业的第一年就显示出了高利润。