formation
加入词篮former
formula
formula
forth
fortnight
fortunate
fortunately
fortune
forty
forum
forward
fossil
found
found
foundation
foundation
fountain
fountain
four
fourteen
fox
fraction
fragment
frame
framework
franc
frank
fraud
free
freedom
freeway
freeze
freight
frequency
frequent
fresh
Friday
fridge
friend
friendly
friendly
friendship
frighten
frog
from
front
frontier
frost
frown
fruit
fruitful
frustrate
fry
fry
fuel
fulfil
fulfill
full
fun
function
function
functional
functional
fund
fundamental
funeral
funny
funny
fur
fur
furnace
furnish
furniture
further
furthermore
fuss
future
gain
gain
gal
gallery
gallon
gamble
game
game
gang
gap
garage
garbage
garden
gardener
gardener
gas
gas
gasolene
gasoline
gate
gather
gay
