知

zhī to know; to be aware

乎

hū (classical particle similar to 於|于[yu2]) in; at; from; because; than; (classical final particle similar to 嗎|吗[ma5], 吧[ba5], 呢[ne5], expressing question, doubt or astonishment)

社工

shè gōng social work; social worker

库

kù warehouse; storehouse; (file) library

手机

shǒu jī cell phone; mobile phone; CL:部[bu4],支[zhi1]

号

hào ordinal number; day of a month; mark; sign; business establishment; size; ship suffix; horn (wind instrument); bugle call; assumed name; to take a pulse; classifier used to indicate number of people

háo roar; cry; CL:個|个[ge4]

定位

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

轨迹

guǐ jì locus; orbit; trajectory; track

查询

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

。 最

zuì old variant of 最[zui4]

zuì variant of 最[zui4]

zuì most; the most; -est (superlative suffix)

安全

ān quán safe; secure; safety; security

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]

网络

wǎng luò network (computing, telecommunications, transport etc)

Wǎng luò Internet

平台

píng tái platform; terrace; flat-roofed building

查询

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

免费

miǎn fèi free (of charge)

社工

shè gōng social work; social worker

库

kù warehouse; storehouse; (file) library

网站

wǎng zhàn website; network station; node

mianfeione