Original content:
促销活动中，我们将推出一种新的补充剂，含有钙、柠檬酸、镁和锌。这种补充剂不仅有助于提高骨骼健康，还能增强免疫系统。我们建议每天服用这种补充剂，以确保获得足够的营养。
Rewritten content:
In our promotional campaign, we are launching a new supplement that contains calcium citrate, magnesium, and zinc. This supplement not only supports bone health but also strengthens the immune system. We recommend taking this supplement daily to ensure you receive adequate nutrition, which includes the benefits of calcium citrate, magnesium, and zinc to promote overall wellness. Incorporating calcium citrate, magnesium, and zinc into your routine can significantly contribute to your health goals.