免费

miǎn fèi free (of charge)

人

rén man; person; people; CL:個|个[ge4],位[wei4]

脸

liǎn face; CL:張|张[zhang1],個|个[ge4]

识别

shí bié to distinguish; to discern

大

dà big; huge; large; major; great; wide; deep; older (than); oldest; eldest; greatly; very much; (dialect) father; father's elder or younger brother

dài see 大夫[dai4 fu5]

数据

shù jù data; numbers; digital

shù jù data; numbers; digital; also written 數據|数据

找

zhǎo to try to find; to look for; to call on sb; to find; to seek; to return; to give change

人

rén man; person; people; CL:個|个[ge4],位[wei4]

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]

圈子

quān zi circle; ring; (social) circle

手机

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

定位

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

软件

ruǎn jiàn (computer) software

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