She's been in and out of hospitals ever since the accident. 自从那次事故之后,她成了医院的常客。
He's been in and out of therapy for the last ten years.
The child has been in and out of foster homes for the last ten years.
In her younger years, she was in and out of rehab.
His mother was in and out of jail for most of his childhood.
See also: in adverb (FROM OUTSIDE)