纵深查访

【经】 depth interview

纵的英语翻译：

endlong; even if; from north to south; indulge; jump up; release; vertical

深的英语翻译：

close; dark; deep; deepness; late; profound; profundity; very
【医】 batho-; bathy-

查访的英语翻译：

go around and inquire; investigate
【法】 go around and make inquiries