(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
网上
wǎng shàngㄨㄤˇ ㄕㄤˋ
on-line[cedict]
调查
diào cháㄉㄧㄠˋ ㄔㄚˊ
investigation; inquiry; to investigate; to survey; survey; (opinion) poll[cedict]
过
guòㄍㄨㄛˋ
(experienced action marker); to cross; to go over; to pass (time); to celebrate (a holiday); to live; to get along; excessively; too-; surname Guo[cedict]
其中
qí zhōngㄑㄧˊ ㄓㄨㄥ
among; in; included among these[cedict]
的
deㄉㄜ˙
díㄉㄧˊ
dìㄉㄧˋ
of; structural particle: used before a noun, linking it to preceding possessive or descriptive attributive[cedict]