I will never forget the unconditional love shown by my stepmother when I asked her if she would object to mother attending daddy's funeral.

我永远不会忘记那一份爱，当我问继母是否会反对母亲参加爸爸的葬礼，她表现出的无条件的爱。

youdao

My stepmother was in her element, organizing everything.

我继母那时如鱼得水，安排着所有一切。

《柯林斯英汉双解大词典》

I did, so she is my stepmother now.

我告诉她了，因此她现在成了我的继母。

youdao

During the nights, my stepmother would stay up with my dad to make sure he wouldn't suffocate while he slept.

NPR: Inner Strength from Desperate Times

She was a friend my father had made in Cuba, and after the divorce she became my stepmother, his second wife.

NEWYORKER: Gravel

It was my stepmother, Janey Hovenden, who really had the hardest time when my father was suffering from ALS. For three years, she juggled work, my dad and me with virtually no breaks, but she never gave up.

NPR: Inner Strength from Desperate Times