However, the teaching contents and the qualifications of its coaches are crucial for its scientific and healthy development.
而健美操教学的内容和教练的素质是这项健身活动能否科学、健康开展的关键。
Some of the potential benefits relate directly to the healthy development of the brain and nervous system.
一些潜在的好处直接关系到大脑神经系统的健康发展。
WHO recommends breastfeeding as the ideal way of providing young infants with the nutrients they need for healthy growth and development.
世卫组织建议采用母乳喂养,认为母乳喂养是为婴儿提供健康成长和发育所需营养的理想方式。
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