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

你不能那没心肝,连认都不认。

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

"弗朗克被发现吸毒后,的父亲便明跟断绝了父子关。"

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

因为的婚姻，洛弗尔富有的家庭和断绝了关。

I’ll disown you if you misbehave.

要是你不规矩,我就和你断绝关。

He disowned his reprobate son.

明与堕落的儿子脱离关。