boxing

你可以做健身、拳击、壁球和网球。

You can do gym, ___boxing, squash, and tennis.

他是一位前世界重量级拳击冠军。

He's a former world heavyweight ___boxing champion.

他刻苦训练以成为职业拳击冠军。

He trained hard to become a professional ___boxing champion.