◊ The phrase fishing expedition is sometimes used in a disapproving way, especially in U.S. English, to describe a situation in which a person or group looks for evidence that someone has done something wrong without having a good reason to believe the evidence exists.非法调查（有时用作贬义，尤用于美国英语，指在无正当理由的情况下专为挖掘某人罪证而进行的调查行动）