英文關鍵字
adult
athletic
body
boxer
boxing
cardio
caucasian
challenge
champion
club
coach
concentration
cross
endurance
exercise
exercising
feet
fighter
fit
fitness
floor
guy
gym
instructor
jump
jumping
kickboxing
legs
male
man
martial
mat
muscle
preparation
professional
ringside
rope
skipping
slim
soft
sport
sportsman
sportswear
strong
trainer
training
workout
young