空手道

例句：

1. 1. The kung fu master taught me how to defend myself in a fight.
   这位功夫大师教我如何在战斗中保护自己。
2. 2. He practices karate every day to improve his flexibility and strength.
   他每天练习空手道以提高自己的灵活性和力量。
3. 3. In the old days, martial arts were often used for self-defense and combat.
   在古代，武术常常被用来自卫和战斗。