a registered trademark has the characteristics of exclusiveness, exclusivity and uniqueness, which belongs to the owner of the registered trademark and is protected by law. No enterprise or individual may use it without the permission or authorization of the owner of the registered trademark, otherwise it will bear tort liability. TM is imported from abroad, and the use of TM means trademark symbol (enterprises usually use TM to indicate that the text, graphics or symbols are used as trademarks), that is, the text, graphics or symbols marked with TM are trademarks, but they are not necessarily registered. TM is the abbreviation of English trademark. (It should be specially noted that words, words and symbols that have become registered trademarks, in actual use, if the font version used is different from the font used at the time of registration, cannot be used as a registered trademark with the circle R symbol.)