英文關鍵字
30s
40s
adult
business
businessman
calculating
calculator
caucasian
cell
cellphone
checking
close
color
contains
counting
desk
employee
ethnicity
executive
focused
formal
hand
holding
home
indoors
interior
late
lighting
looking
male
man
manager
mirror
mobile
natural
numbers
one
people
person
phone
results
screen
shirt
sitting
smartphone
tax
telephone
tie
touch
typing
using
wireless
work
worker
coronavirus
pandemic
epidemic
virus
crisis