英文關鍵字
invention
step
ideas
mark
butterfly
eternity
prints
career
rough
effect
steps
structure
floor
grey
outside
human
camera
imprint
foot
footprint
surface
dirty
person
shoe
sole
history
leave
stair
stairs
focus
man
staircase
concrete
boot
abstract
concept
design
texture
pattern
moves
cement
construction
wall
background
building
architecture
stone
outdoor