make an investigation of

• 调查； 调查研究

make an investigation of的用法和样例：

例句

1. They held an inquiry into the incident.
   他们对这一事件展开调查。
2. Investigation of fraud was their commission.
   调查诈欺舞弊是他们的任务。
3. Some of us often neglect such investigation and study.
   我们有些人常常忽略了这类调查研究。
4. We have already made a careful investigation of the case.
   我们已经对这个索赔案件做了详细的调查研究。