You couldn’t be so heartless as to disown him.

不能那没心肝,连都不他。

Frank's father disowned him when he was caught taking drugs.

"弗朗克被发现吸毒后,他的父亲便声明跟他断绝了父子关系。"

Lovell's rich family had disowned him because of his marriage.

因为他的婚姻，洛弗尔富有的家庭他断绝了关系。

I’ll disown you if you misbehave.

要是不规矩,我断绝关系。

He disowned his reprobate son.

他声明与堕落的儿子关系。