英文關鍵字
abstergent
arrange
bicycle
bike
chain
clean
cleanser
clear
cycle
detergent
detersive
dirt
figure
filth
frame
grime
house
mire
mud
net
pedals
preparation
prepare
pristine
pure
rasp
ready
redhead
ride
scour
scrape
scratch
scrub
season
sludge
summer
unadulterated
velocipede
wash
wheel
yard