英文關鍵字
age
beginning
checking
clock
concept
copy
countdown
counting
deadline
depth
desk
diligence
elderly
endurance
eternity
field
filled
fingers
fleeting
flow
flowing
focus
glass
hand
hands
hour
hourglass
ideas
man
measurement
memories
minute
not
number
old
passing
past
running
sand
sandglass
selective
shallow
stopwatch
table
theme
time
timing
transparent
trickling
watch
wisdom
yellow