n.开（含金单位，24开＝100％）；克拉（宝石重量单位，等于0.205克）；药克（药品重量单位，等于1.0296克）

He is a skilled karateka, achieving a black belt in karate at the age of 18.
他是一位熟练的空手道家，在18岁时就获得了黑带。
The karate instructor taught us proper stances and kata forms.
空手道教练教我们正确的站姿和套路形式。
She decided to open her own karate studio after retiring from professional competition.
在退出职业比赛后，她决定开设自己的空手道馆。
The karate tournament will be held next month, with participants from various countries.
下个月将举行一场空手道锦标赛，参赛者来自世界各地。
My son started learning karate as a way to discipline himself and build self-confidence.
我的儿子开始学习空手道，以培养自律和增强自信心。
The karate master demonstrated an impressive sequence of moves in front of the class.
空手道大师在全班面前展示了一套令人赞叹的动作。
The karate club meets every Wednesday and Saturday for training sessions.
空手道俱乐部每周三和周六都有训练课。
The karate belt system is a symbol of dedication and progress in the art.
空手道的腰带体系象征着对这项艺术的献身精神和进步。
She won the karate championship by defeating her opponent in the final round.
她在决赛中击败对手，赢得了空手道冠军。
His years of practice paid off when he successfully defended his karate title.
多年的练习让他在卫冕空手道头衔时取得了成功。