family business; family trade
one's occupation; one's trade
父の跡を継いで家業を守った。
I carried on the family business after my father.
家業が傾き一家は苦しい生活を送った。
The family business declined and the family lived in hardship.
家業に専念するため大学を中退した。
I dropped out of university to devote myself to the family business.