v show approval or appreciation of
v grant credentials to
v detect with the senses
v express greetings upon meeting someone
v express obligation, thanks, or gratitude for
v be fully aware or cognizant of
v perceive to be the same
v accept (someone) to be what is claimed or accept his power and authority
s provided with a secure reputation
s generally approved or compelling recognition
v. 承认;认出;辨别(recognise的过去分词)
a. 认可的