holdover
noun [ C ] US uk/ˈhəʊld.əʊ.vər/ us/ˈhoʊld.oʊ.vɚ/
留任的…;留下的…
a person or thing that continues from an earlier time, especially a person who continues in an organization after other people have been replaced
The coach had a pointed message for newcomers to the team and a reminder for the holdovers. 教练给了新队员明确的信息，也对留任队员发出了提醒。
Freud explained it as a holdover from a childhood problem. 弗洛伊德将之解释为童年问题的遗留。