When a trademark is challenged during the preliminary examination announcement, it indicates that the trademark may infringe the relevant rights of the earlier application. For example, it may constitute the same or similar infringement as the previously registered trademark, or infringe upon the copyright of others, the right to name enterprises, the right to name well-known commodities, etc. Therefore, the reasons for the objection should be carefully examined, otherwise the continued use may constitute an infringement of the prior rights of others and should be used with caution.