Please verify the authenticity of each invoice before approving payment to new suppliers.

在核准付款給新供應商之前，請先確認每張發票的真實性。

Customers questioned the authenticity of the discounted handbags sold on our website.

顧客質疑我們網站上販售的折扣手提包的真實性。

The hiring team confirmed the authenticity of her diploma with the university registrar.

招聘團隊已向大學註冊組確認她畢業證書的真實性。