YOU SAID:

Dr ████: Firstly, how did the event occur?

INTO JAPANESE

████博士：まず、イベントはどのように発生しましたか？

BACK INTO ENGLISH

Dr. ████: First of all, how did the event occur?

INTO JAPANESE

████博士：まず、この出来事はどのように起こったのですか？

BACK INTO ENGLISH

Dr. ████: First of all, how did this happen?

INTO JAPANESE

████博士：まず、これはどのようにして起こったのですか？

BACK INTO ENGLISH

Dr. ████: First of all, how did this happen?