彻底调查

1.exhaustivesurvey  

底的英语翻译：

a copy kept as a record; base; bottom; end; fundus; the truth of a matter
【医】 base; basement; bases; basi-; basio-; basis; batho-; bathy-; fimdi
floor; fundus; pavimentum; solum

调查的英语翻译：

examine; inspect; investigate; look into; probe; search; survey
【医】 inquisition; investigation; survey
【经】 escalation; inquiry; investigate; investigation; probe; survey