侦

例句：

1. 1. The police are conducting a thorough investigation into the incident.
   警方正在对这起事件进行彻底的调查。
2. 2. The detective was able to solve the case by piecing together clues from various sources.
   这位侦探通过从各种来源拼凑线索，最终解决了这个案件。
3. 3. The scientist conducted an extensive investigation into the cause of the disease.
   科学家对这种疾病的原因进行了广泛的调查。