英文關鍵字
aluminum
basin
bubble
circle
circular
clean
closeup
container
down
drain
drainage
drop
falling
flow
flowing
flush
gravitate
hole
home
kitchen
liquid
loop
metal
metallic
moving
plumber
plumbing
pour
purl
running
runny
sanitary
sewage
sewer
silver
sink
stainless
steel
stream
surface
swirl
tap
vortex
wash
waste
water
wet
whirl
whirlpool
winding