sparring

他们经常在晚餐时友好地争论各种话题。

They enjoy ___sparring over various topics at dinner in a friendly way.

拳击手们在健身房轻量对练，为比赛做准备。

The boxers were ___sparring lightly in the gym to get ready for the competition.

他每周都和教练对练来提高自己的拳击技巧。

He practices ___sparring with his coach every week to improve his boxing skills.