英文關鍵字
action
american
arena
athlete
athletic
ball
beginning
body
career
compete
competition
equipment
field
fitness
football
game
goal
gridiron
group
helmet
league
male
masculinity
match
men
national
nfl
opponent
people
pitch
play
players
power
professional
skill
sport
sports
stadium
standing
start
strength
strong
success
team
uniform
view
wait
wearing
win
winner