[名詞] investigation; [動詞] survey, examine, inquire into, survey
- The police are investigating the theft.
Please cooperate with the police investigation.
Tom is secretly investigating the explosion.
Jack is working hard to investigate the whereabouts of his sister who has been missing for three years.
Please investigate the truth first so as not to misunderstand innocent people.
- The police have been investigating this case for three years and finally found the latest clues recently.
The prosecutor must investigate each case very carefully.
After my investigation, I think the market acceptance of this product is not high.
- After investigation by the police, up to five people were involved in this case.
Finding clues is necessary to investigate the case.