英文關鍵字
adult
athletic
body
boxer
boxing
cardio
caucasian
challenge
champion
club
concentration
confident
endurance
exercise
exercising
feet
fighter
fitness
guy
gym
jump
jumping
kickboxing
legs
male
man
martial
muscle
muscular
preparation
professional
ringside
rope
shorts
skip
skipping
slim
sport
sportsman
sportswear
strong
training
white
workout
young