1. investigation
2. inquiry
3. survey
4. to investigate
5. to survey
6. (opinion) poll
Relative explainations:
<look-see> <investigate> <indagation> <Inquisition> <seeing into> <indagator> <search> <indagate> <research> <search into> <see into> <ynquiry> <look over> <inspection> <inquisite>
Examples:
1. 警方開始調查事故的原因。
The police instituted an inquiry into the cause of the accident.
2. 該項調查對她的工作提出了批評。
The inquiry was critical of her work.
3. 我們曾請求法院調查。
We made an application to the court for an inquiry.
4. 他們答應對這次飛機失事進行徹底的調查。
They've promised a thorough inquiry into the plane crash.
5. 警察正在調查這件謀殺案。
The police are investigating the murder.
6. 這壹事故正在調查之中。
The accident is under investigation.
7. 這僅僅是調查的開始。
It's only the initiative of the investigation.
8. 警方正在調查他卷入那樁罪行的可能性。
The police are investigating his possible involvement in the crime.
prospective study
前瞻性調查
retrospective study
回顧性調查
soil survey
土壤調查
Archaeological Reconnaissance
文物調查
audience survey
受眾調查
market research
市場調查
noise survey
噪聲調查
Look into
調查，觀察
Delve into
調查，鉆研
An investigation; an inspection.
調查；查看