expose a fraud

例句：

1. 1.The scientist exposed the truth about the experiment.
   科学家揭露了实验的真实情况。
2. 2. The policeexposed a fraud in the investigation.
   警方在调查中揭露了一个骗局。
3. 3. Thegovernment is expected to exposethe corruption within its own ranks.
   政府预计将揭露其内部的腐败行为。