low-powered money

例句：

1. 1.The low-powered microscope is not suitable for detailed observation.
   这个低功率显微镜不适合进行详细观察。
2. 2.The weak economy has made it difficult for the country to achieve its development goals.
   经济弱小使得该国难以实现其发展目标。
3. 3. The company's low-powered marketing campaign has failed to generate significant sales.
   公司的低效营销活动未能产生显著的销售业绩。