If I'd wed one with single heard,
Even white-haired, We should not part.

愿得一人心，
白头不相离。

1. web 娶，嫁，结婚（尤其用于文学作品或报纸, 比较古旧）
= marry
wedding n. 婚礼

wed sb 与...结婚

She wed film director Roger Vadim
她嫁给了电影导演罗杰.瓦丹

The couple plan to wed next summer.
这俩人计划在夏天结婚。

2. a single heart 一颗心
single hearted 诚实的，一心一意的

He was single-hearted in this aim.
他一心一意追求自己的目标。

3. white haired 白发苍苍
The White-Haired Girl 白毛女

4. part v. 离开，分别
part from XX/ be parted from XX 与 XX 分开

We parted at the airport.
我们在机场分手了。

He has parted from this wife.
他和妻子分居了。

He hates being parted from the children.
他不愿意和孩子们分离。

I never wish to be parted from you from this day on.
从今天起我不想与你分开。

I parted from her badly.
我们分别时很不愉快

I read your book over and over and I'm drawn and never want to be parted from your characters.
我一遍又一遍地读你的书，我被你的书深深吸引，不想和你书中的角色分开。