安全

ān quán safe; secure; safety; security

查询

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

个人

gè rén individual; personal; oneself

飞机

fēi jī airplane; CL:架[jia4]

、 动车

dòng chē power car; multiple-unit train (abbr. for 動車組|动车组)

记录

jì lù to record; record (written account); note-taker; record (in sports etc); CL:個|个[ge4]

, 首要

shǒu yào the most important; of chief importance

选择

xuǎn zé to select; to pick; choice; option; alternative

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]

黑盒

hēi hé black box; fig. system whose internal structure is unknown

社工

shè gōng social work; social worker

库

kù warehouse; storehouse; (file) library

社工

shè gōng social work; social worker

库

kù warehouse; storehouse; (file) library

软件

ruǎn jiàn (computer) software

下载

xià zǎi to download; also pr. [xia4 zai4]

chachafacom