Academicians serve as guarantees.

Endorsement refers to a kind of praise and support given to you through the popularity, reputation, or authority of a third party. It is not wrong to choose you. To endorse someone, to understand it in layman’s terms, means to vouch for someone.

The word "endorsement" comes from the bank's bill business. "Endorsement" means that when a bill is transferred, the original holder stamps his or her seal or signature on the back of the bill to prove that the bill is authentic and valid. If you have any questions, please contact me.