She kept vigil at the bedside of her critically ill son.

她彻夜守护在病重儿子的病榻旁。

《柯林斯英汉双解大词典》

For weeks, her parents kept vigil by her bed.

几个星期以来，她的父母一直为她守夜。

youdao

The red priest rested by day but kept vigil through the dark hours, to tend his sacred flames so that the sun might return to them at dawn.

这个红袍僧白天休息而在黑暗的时段中则一直清醒的看顾他神圣的火焰，这样在黎明时太阳才会回归他们。

youdao

Rachel kept vigil at his bedside and when he woke, they fell in love over a tray of bad hospital food.

CNN: Proposal destinations: 10 best places to pop the question

How Navy honor guards kept constant vigil, through the night, as so many of you passed by to pay your respects.

WHITEHOUSE: President Obama Addresses Servicemen and Women in Jacksonville, FL | The White House

Outside, managers kept a vigil, created a temporary shelter for evacuees at a cinema multiplex nearby and arranged for rooms at other hotels.

FORBES: Magazine Article