| 1. | The anatomy of the strands was not investigated . 没人研究过菌绳的解剖学。 |
| 2. | He is always investigating or doing something . 他永远在探索或做一些事情。 |
| 3. | The health authorities are investigating the matter . 卫生当局正调查这件事。 |
| 4. | The police are investigating the cause of the explosion . 警方正在调查爆炸的原因。 |
| 5. | Police are investigating a break-in at the bank . 警方正在调查有人闯入银行的事件。 |
| 6. | The police are investigating an important new lead . 警方正在调查一条重要的新线索。 |
| 7. | Everything has been analyzed and investigated . 每件事情都做了认真的分析和调查研究。 |
| 8. | Scientists investigate the nature . 科学家研究自然。 |
| 9. | He was asked to investigate the causes of a railway accident . 要他去调查火车肇事的起因。 |
| 10. | No ailment was found, and he investigated again . 并没有发现什么毛病,于是他又检查了一遍。 |