这位居民已经在镇上住了二十年。

The ___resident has lived in this town for twenty years.

这位住院医生正在学习如何做心脏手术。

The ___resident is learning how to perform heart surgeries.

她是这个社区的常住居民，已经在这里住了十年。

She is a ___resident of this community and has lived here for ten years.