老祖宗的英文：
ancestor

The Old Ancestress can set her mind at rest and leave him safely to me.
"老祖宗放心,只管交与我就是了"

O, father Abraham, what suspicious people these Chritians are!
亚伯拉罕老祖宗啊！这些基督教徒疑心病有多重呀！

"The old lady is so fond of lively parties, I was sure there must be some reason for her absence."
"我说老祖宗是爱热闹的,今日不来,必定有个原故,若是这么着就是了"

The abacus is the ancestor of the modern computer.
算盘是现代电脑的原型。

"ancestral: Of, relating to, or evolved from an ancestor or ancestors."
祖先的:与祖先有关的,祖宗传下的。

The sins of the ancestors were visited on their descendants.
祖先的罪恶报应到他们后代的身上

The villagers still follow the customs of their ancestors.
村民们仍然遵从他们祖先的习俗。

My ancestors came from Italian.
我的祖先是意大利人。