new kid on the block
US /nuː kɪd ɑn ðə blɑk/
UK /nuː kɪd ɑn ðə blɑk/

1.
新来者, 新成员
a person who is new to a place or organization and has little experience
:
•
As the new kid on the block, she was eager to learn everything.
作为新来者,她渴望学习一切。
•
The company hired a lot of new kids on the block this year.
公司今年雇佣了很多新员工。