Restore Strength and Flexability to Hair, Skin and Nails This 100% pure collagen protein supplement provides the major building materials for growth and maintenance of nails, hair and skin.是什么意思_Restore Strength and Flexability to Hair, Skin and Nails This 100% pure collagen protein supplement provides the major building materials for growth and maintenance of nails, hair and skin.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句