to be a newcomer to sth对某事不熟悉
The candidates are both newcomers to politics.两位候选人对政治都不熟悉。
It was a very good performance for someone who is a relative newcomer to this sport.作为这项运动的后来者, 这样的表现已经非常精彩了。
As a newcomer to Rickettsville, I greatly appreciated the reception I got from the townsfolk.初到里基茨维尔, 我非常感谢镇上居民对我的接待。