inquiry/enquiry 
询问 ☊ → 打听 ☊ → 调查 ☊ → 
inquiry 
enquête ☊ 
询问 
Anfrage like: inquiry → →
hold an inquiry into (a legal case); inquirer ☊ 
dự thẩm ☊ investigate, look (into), hold an inquiry (into); exploration, reconnaissance ☊ thám sát ☊ to carry out an inquiry/an investigation/a survey ☊ carry sth out ☊
The government has set up a commission of inquiry into the disturbances at the prison. ☊ commission ☊
to conduct an experiment/an inquiry/a survey ☊ conduct ☊
continue sth: The board of inquiry is continuing its investigations. ☊ continue ☊
determine sth: An inquiry was set up to determine the cause of the accident. ☊ determine ☊
an independent inquiry/witness ☊ independent ☊
an internal inquiry ☊ internal ☊
an inquiry into safety procedures ☊ into ☊
to launch an appeal/an inquiry/an investigation/a campaign ☊ launch ☊
An official inquiry has been launched into the cause of the accident. ☊ official ☊
relevant to sth/sb: These comments are not directly relevant to this inquiry. ☊ relevant ☊
vote to do sth: Parliament voted to set up an independent inquiry into the matter. ☊ vote ☊
enquête ☊ cela coûte cher de faire enquête sur les activités criminelles ☊
enquêter ☊ tu veux vraiment enquêter sur lui? ☊