英文關鍵字
an
antique
black
bottleneck
clock
close
closeup
concept
concepts
containing
countdown
deadline
draining
dropping
emptying
endurance
extra
falling
finite
finiteness
flowing
grain
heap
history
hour
hourglass
hurry
idea
instrument
macro
minute
motion
no
of
old
past
patience
people
retro
running
sand
slow
speed
studio
though
time
timer
transparent
up
watch
white