fitnessKK [ˋfɪtnəs] /ˈfɪtnəs/发音名词1体能、健康状况Swimming three times a week improved her overall fitness.每周游泳三次让她的整体体能变好了。2健身常用于复合词He signed up at a fitness center near his office.他在办公室附近的健身中心报名了。3适合、适当性正式The committee questioned his fitness for such a demanding role.委员会质疑他是否适合担任这种高压的职务。4适应度生物学Traits that raise an animal's fitness tend to spread through the population.能提高动物适应度的性状往往会在族群中扩散。用这个字练口说→