Strong core muscles are important for good posture, a healthy back and the feminine hourglass shape.

本辑肚皮舞躯干训练篇简单易学,国际知名姐妹舞蹈家维娜与尼娜?碧塔莎亲身传授.

Web design has been around long enough now to cultivate a strong core of designers who have never worked in print.

网页设计已经有了一段的历史，足够形成一个强劲的没有印刷设计经验的设计师核心。

Over the years, through continuous vertical integration, Xu Ruite gradually developed a strong core competitive advantage.

多年来，经由不断地垂直整合，瑞丰逐步发展出强而有力的核心竞争优势。