请放心购买英语怎么说

"请放心购买"可以用英文翻译为"Please rest assured to buy"。这是一句商业用语，常用于商店或网站上，表示卖家对产品的质量和服务承诺。

例句：

"Please rest assured to buy our products, we guarantee the quality." (请放心购买我们的产品，我们保证质量。)
"Don't hesitate to buy from us, we assure you of our best service." (不要犹豫购买我们的产品，我们向您保证提供最好的服务。)
"We assure you of the authenticity of our products, please rest assured to buy." (我们保证产品的真实性，请放心购买。)