英文關鍵字
adult
breakfast
business
businessman
businessperson
caucasian
cell
cellphone
center
city
communication
confident
downtown
eat
electronic
employee
finance
financial
gesticulation
gesturing
hungry
internet
man
manager
men
message
mobile
news
online
outside
pause
people
person
preoccupied
read
serious
smartphone
snacks
starved
street
technology
text
town
urban
use
wireless