On the question of trademark cross-retrieval: Who can give an example to illustrate how cross-retrieval works?
Cross-retrieval means cross-category retrieval. For example, if the product in category 7 you want to query is similar to the product in category 12, you should search the similar group in category 12 in addition to category 7. If there is a trademark with the same or similar name to the trademark to be registered in the seventh category among the 12 similar groups, it will be difficult to register the seventh category successfully.