after-before
ahead-behind
angry-happy
animal-plant
ask-answer
aunt-uncle
back-front
bad-good
begin-end
behind-in front of
best-worst
better-worse
big-small
black-white
borrow-lend
borrow-return
both-neither
bottom-top
boy-girl
busy-free
buy-sell
careful-careless
cheap-expensive
clever-foolish
close-open
cloudy-sunny
cock-hen
cold-hot
come-go
cool-warm
cry-laugh
danger-safety
daughter-son
day-night
dead-living
death-birth
different-same
difficult-easy
down-up
dry-wet
early-late
empty-full
enemy-friend
ever-never
fair-unfair（不公平）
far-near
fat-thin
first-last
forget-remember
grandfather-grandmother
grandma-grandpa
happy-sad
hate-love
hear-speak
heavy-light
high-low
hungry-full
husband-wife
in-out
into-out of
joy-sorrow
key-lock
king-queen
later-sooner
long-short
lose-find
man-woman
many-few
mister-madam
more-less
morning-evening
mother-father
Mr-Mrs
new-old
old-young
police-thief
polite-rude
poor-rich
possible-impossible
pull-push
quick-slow
receive-send
refuse-accept
rest-work
right-left
right-wrong
rise-drop
save-waste
short-tall
sit-stand
sky-ground
soft-hard
south-north
start-finish
stay-leave
strong-weak
teacher-student
teach-learn
town-village
yes-no
