come about

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

come about phrasal verb [ came about comes about coming about ]
<A > to happen, or start to happen
• How did the problem come about in the first place?
Thesaurus⁺: ↑Occurring and happening
 
• How did such a confused situation come about?
• She was late again, but I'm not sure how it came about this time.
• How did it come about that the police were involved?
Main entry: come_{phrasal verb}