F字母开头的单词或词组(第13页)：
- flat
- flash
- flee
- flesh
- float
- flood
- floor
- fluent
- flour
- flow
- flower
- fluid
- fly
- focus
- fog
- folk
- follow
- following
- fond
- food
- fool
- foot
- football
- footstep
- for
- force
- foolish
- forehead
- foreign
- foremost
- foresee
- forest
- foretell
- forever
- forget
- forgive
- fork
- form
- formal
- former
- found
- fortunate
- fortune
- forty