这位著名演员在社交媒体上公开支持这款环保产品。

The famous actor openly ___endorses this eco-friendly product on social media.

请在支票背面签名背书后才能兑现。

You need to ___endorse the check by signing on the back before cashing it.

医生协会正式认可了这种新型治疗方法。

The medical association officially ___endorsed this new treatment method.