如何

rú hé how; what way; what

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

。 唯一

wéi yī only; sole

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]

搜狗

Sōu gǒu Sougou (searching dog) search engine, www.sogou.com

社工

shè gōng social work; social worker

库

kù warehouse; storehouse; (file) library

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