英文關鍵字
alone
area
audio
computer
desk
device
digital
display
electricity
engineer
equipment
generator
glasses
hand
human
indoor
inside
job
keyboard
lab
lamp
light
magnetophone
male
man
motion
mouse
movement
one
oscilloscope
person
printer
professor
profile
room
samara
screen
scroll
service
shelve
single
sit
table
teacher
watch
wire
work
workbench