fitness

He joined a local gym to improve his overall physical fitness and strength.

(Chinese) 他加入了当地的一家健身房，以提高他的整体身体素质和力量。

Regular swimming is an excellent way to maintain your cardiovascular fitness.

(Chinese) 定期游泳是保持心血管健康的一种极好方式。

Natural selection favors traits that increase an individual's evolutionary fitness.

(Chinese) 自然选择倾向于那些能增加个体进化适应性的特征。

The male bird's colorful feathers are a sign of his health and genetic fitness.

(Chinese) 雄鸟鲜艳的羽毛是其健康和遗传适应性的象征。