v. 认出( recognize的第三人称单数 ); 承认[认清]（某事物）; 赏识; 承认…有效[属实]

v accept (someone) to be what is claimed or accept his power and authority

v be fully aware or cognizant of

v detect with the senses

v perceive to be the same

v grant credentials to

v express greetings upon meeting someone

v express obligation, thanks, or gratitude for

v exhibit recognition for (an antigen or a substrate)

v show approval or appreciation of