1 PHRASAL VERB [no passive] 和…混在一起;和…好上了;和…关系暧昧 You say that someone
has taken up with someone unsuitable when they have begun a sexual or friendly relationship with them, and you disapprove of this.
和…混在一起;和…好上了;和…关系暧昧 [disapproval] SYN become friendly with, get involved with, start seeing, fall in with
2 PHR-V-PASSIVE 忙于 If you
are taken up with something, it keeps you busy or fully occupied.
忙于