4not be/feel/seem herselfinformal if a woman or girl is not herself, she does not feel or behave as she usually does, for example because she is upset or ill (她)〔因情绪或身体欠佳等〕感觉不妥;行为反常
You must forgive her – she’s not herself at present.
你一定要原谅她——她目前情绪反常。
5have something (all) to herselfif a woman or girl has something to herself, she does not have to share it with anyone else (她)私用,独用
Alice had the house to herself while her parents were away.