However, it is important to exercise caution when receiving unsolicited invitations like this, especially when they ask for personal information or payment. It's always a good idea to do your research before accepting any invitations or providing personal information. You can check the legitimacy of the organization or publication by looking them up online, reading reviews from other people who have participated in their programs, and verifying the contact information provided in the invitation. If you have any doubts about the legitimacy of the invitation, it's best to err on the side of caution and not provide any personal information or payment until you can confirm the organization's authenticity.

灌水！