passive improvement trade

例句：

1. 1. The government is promoting a passive improvement trade to boost economic growth.
   政府正在推广一种被动改善贸易，以促进经济增长。
2. 2.This company's strategy of passive improvement trade has been highly praised by investors.
   这家公司的被动改善贸易策略受到了投资者的高度评价。
3. 3.In the long term, this passive improvement trade could lead to significant environmental benefits.
   从长远来看，这种被动改善贸易可能会导致显著的环境效益。