是否

shì fǒu whether (or not); if; is or isn't

查询

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

某人

mǒu rén someone; a certain person; some people; I (self-address after one's surname)

行为

xíng wéi action; conduct; behavior; activity

轨迹

guǐ jì locus; orbit; trajectory; track

究

jiū after all; to investigate; to study carefully; Taiwan pr. [jiu4]

极

jí extremely; pole (geography, physics); utmost; top

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]

服务

fú wù to serve; service; CL:項|项[xiang4]

行业

háng yè industry; business

天使

tiān shǐ angel

社工

shè gōng social work; social worker

库

kù warehouse; storehouse; (file) library

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