苦しい時に助けてくれた彼には深い恩義を感じている。
I feel a deep debt of gratitude to him for helping me when times were hard.
育ててくれた叔父の恩義に報いたい。
I want to repay my debt to the uncle who raised me.
恩義のある先輩の頼みなので断れなかった。
It was a request from a senior colleague I was indebted to, so I couldn't refuse.