势头

例句：

1. 1.The company's market share is showinga strong upward momentum.
   该公司的市场份额正在显示出强劲的上升趋势。
2. 2. The economy is on therise, and there's a strongmomentum for growth.
   经济正在上升，增长势头强劲。
3. 3. The new policy has given apositive momentum to the reform efforts.
   新政策为改革工作提供了积极的推动力。