new girl/boy
noun [ C ] mainly UK uk/ˈnjuː ˌɡɜːl/ us/ˈnuː ˌɡɝːl/
刚上学的孩子，（小学）新生
a child who has recently started going to a school
新手;新成员
someone who has recently become involved with an activity or organization
Mark Kennedy is the new boy in the government. 马克‧肯尼迪是政府中的新成员。