機器
appliance
automatic
background
blue
bot
bottom
clean
cleaner
cleaning
device
domestic
dry
dust
electronic
equipment
flat
floor
home
hoovering
house
household
housekeeping
housework
hygiene
lay
many
modern
move
object
pattern
plenty
power
repeated
robot
robotic
room
round
service
smart
technology
texture
tool
top
uniform
vacuum
vacuuming
view
wireless
work