Health Retreats: Learn healthy living methods like nutrition, fitness, natural health care, and even meditation.

保健静养：学会健康的生活方法，比如营养搭配、健身、自然保健，甚至于冥想。

youdao

Now the core of natural selection is the claim that phenotypic traits are selected for their adaptivity, that is, for their effect on fitness.

目前自然选择的核心观点是表型性状因其适应性而被选上。

youdao

Genetic algorithms mimic Darwinian natural selection, where "fitness" selects individuals for survival, breeding, and, hence, adaptive mutation.

遗传算法模仿达尔文的自然选择，其中“适应性”选择进行生存、繁殖以及由此而来的适应性变异的个体。

youdao

"I just hope my natural fitness can help me get me back as quickly as possible, " added McGinn.

BBC: Injury blow for Celtic winger Niall McGinn

He also built out his magazine publishing empire with titles that included Shape, Men's Fitness, Flex, Natural Health and Muscle and Fitness.

CNN: Fitness pioneer, Schwarzenegger mentor Joe Weider dies

Jeremiah Ouellette, manager of New Morning Natural Foods Market, across the street from the fitness studio, said residents have put the prostitution episode behind them.

NPR: Maine Zumba Teacher Pleads Guilty To Prostitution