定位

dìng wèi to orientate; to position; to categorize (as); to characterize (as); positioning; position; niche

跟踪

gēn zōng to follow sb's tracks; to tail; to shadow; tracking

查询

chá xún to check; to inquire; to consult (a document etc); inquiry; query

通讯

tōng xùn communications; news story; dispatch; CL:個|个[ge4]

社交

shè jiāo interaction; social contact

信息

xìn xī information; news; message

。 大型

dà xíng large; large-scale

的

de of; ~'s (possessive particle); (used after an attribute); (used to form a nominal expression); (used at the end of a declarative sentence for emphasis)

dí really and truly

dì aim; clear

dī see 的士[di1 shi4]

机房

jī fáng machine room; engine room; computer room

社工

shè gōng social work; social worker

库

kù warehouse; storehouse; (file) library

数据库

shù jù kù database

tianchachacom