Jaycee
noun /ˈdʒeɪsiː/
/ˈdʒeɪsiː/
(North American English, informal)- a member of the United States Junior Chamber, an organization for people between the ages of 18 and 40 that provides help in local communities in the US and other countries
美国青年商会会员（年龄在 18 至 40 岁之间，为美国和其他国家的当地社区提供援助） 词源1940s: representing the initials of Junior Chamber.