英文關鍵字
alone
architecture
background
climb
climbing
concept
construction
emergency
escape
exit
exploration
exterior
going
metal
metallic
old
outdoor
path
perspective
point
rail
railing
reach
rise
rising
rusty
stair
staircase
stairs
stairway
step
steps
structure
stylish
upstairs
urban
view
vintage
walk
walking
warehouse