You use herself to refer to a woman, girl, or female animal.
双语例句
例：
She let herself out of the room.
她从房间里退了出来。
例：
Jennifer believes she will move out on her own when she is financially able to support herself.
珍妮弗相信，当自己能经济独立了，她就会搬出去单住。
2.?（书面英语中泛指人）她自己 , 他自己
In written English, herself is sometimes used to refer to a person without saying whether that person is a man or a woman. Some people dislike this use and prefer to use 'himself or herself' or 'themselves'.
双语例句
例：
How can anyone believe stories for which she feels herself to be in no way responsible?
那些话连她本人都觉得是自己不负责任地瞎编的，人们怎么会相信它们呢？
3.?（用以加强语气）她本人
You use herself to emphasize the person or thing that you are referring to. Herself is sometimes used instead of 'her' as the object of a verb or preposition.