英文關鍵字
analog
analogue
background
business
button
calculating
click
clicker
clicking
close
count
countdown
counter
counting
digit
digits
display
equipment
figures
fingers
flip
hand
indicator
industry
instrument
isolated
key
machine
macro
male
manual
mathematical
measurement
metal
number
numeral
object
pink
push
record
right
small
start
sum
tally
technology
time
white
year